Lockheed Martin Corp
Lockheed MActive Patents
0
Total Holdings
364
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| EP0681267A2 | Image generation architecture employing tri-level fixed int… | Expired / Lapsed | 1995-05-03 | — | 4 | Details |
| EP0607015A1 | Method for tracking a maneuvering target with a slow scan r… | Expired / Lapsed | 1994-01-11 | — | 12 | Details |
| EP0119096A2 | Ultrasonic liquid jet probe | Expired / Lapsed | 1984-03-13 | — | 17 | Details |
| DE2724399A1 | Multilayer circuit board with integral flexible appendages … | Expired / Lapsed | 1977-05-28 | — | 0 | Details |
| DE2423477A1 | SYSTEM AND PROCEDURES FOR MOBILE MESSAGE TRANSPORT USING DI… | Expired / Lapsed | 1974-05-15 | — | 0 | Details |
| DE2423603A1 | METHOD AND SYSTEM FOR MESSAGE EXCHANGE IN A ZONE NETWORK | Expired / Lapsed | 1974-05-15 | — | 0 | Details |
| DE2423603B2 | PROCEDURE FOR ALLOCATING FREQUENCY CHANNELS IN A RADIO TELE… | Expired / Lapsed | 1974-05-15 | — | 0 | Details |
| DE2251650A1 | METHOD AND DEVICE FOR DATA TRANSMISSION | Expired / Lapsed | 1972-10-20 | — | 0 | Details |
| DE2251602A1 | METHOD AND DEVICE FOR CONNECTING TRANSDUCERS | Expired / Lapsed | 1972-10-20 | — | 0 | Details |
| US6708107B2 | Real-time ad hoc traffic alert distribution | Expired / Lapsed | 2002-04-02 | 2004-03-16 | 23 | Details |
| US6682250B2 | Position-adjustable fastening apparatus and method | Expired / Lapsed | 2001-11-07 | 2004-01-27 | 28 | Details |
| US6457306B1 | Electrical drive system for rocket engine propellant pumps | Expired / Lapsed | 2000-11-13 | 2002-10-01 | 25 | Details |
| US6424358B1 | Method and system for importing database information | Expired / Lapsed | 1999-12-02 | 2002-07-23 | 8 | Details |
| US6246782B1 | System for automated detection of cancerous masses in mammo… | Expired / Lapsed | 1997-06-06 | 2001-06-12 | 50 | Details |
| US6215776B1 | Satellite communication system | Expired / Lapsed | 1997-10-08 | 2001-04-10 | 28 | Details |
| EP0607015B1 | Method for tracking a maneuvering target with a slow scan r… | Expired / Lapsed | 1994-01-11 | 2000-09-27 | 10 | Details |
| US6002723A | Digital receiver having programmable complex threshold dete… | Expired / Lapsed | 1997-08-15 | 1999-12-14 | 9 | Details |
| US4727365B1 | Advanced video object generator | Expired / Lapsed | 1986-05-21 | 1999-10-05 | 0 | Details |
| US5692107A | Method for generating predictive models in a computer system | Expired / Lapsed | 1996-09-20 | 1997-11-25 | 17 | Details |
| US5504719A | Laser hydrophone and virtual array of laser hydrophones | Expired / Lapsed | 1974-09-19 | 1996-04-02 | 16 | Details |
| US5455709A | Total internal reflection spatial light modulation apparatu… | Expired / Lapsed | 1993-03-23 | 1995-10-03 | 18 | Details |
| US5436453A | Dual mode energy detector having monolithic integrated circ… | Expired / Lapsed | 1993-10-15 | 1995-07-25 | 10 | Details |
| US5359330A | Microburst precursor detection utilizing microwave radar | Expired / Lapsed | 1993-07-29 | 1994-10-25 | 15 | Details |
| US5311019A | Pyroelectric hybridized long-wave infrared laser radiation … | Expired / Lapsed | 1992-04-14 | 1994-05-10 | 21 | Details |
| US5307073A | Optically controlled phased array radar | Expired / Lapsed | 1992-11-13 | 1994-04-26 | 43 | Details |
| US5282846A | Ravel-resistant, self-supporting woven vascular graft | Expired / Lapsed | 1992-04-29 | 1994-02-01 | 10 | Details |
| US5262782A | Microburst precursor detector | Expired / Lapsed | 1992-05-13 | 1993-11-16 | 21 | Details |
| US5245680A | Grin lens optical backplane with dual transmitter-receiver … | Expired / Lapsed | 1993-02-05 | 1993-09-14 | 16 | Details |
| US5208880A | Microdynamical fiber-optic switch and method of switching u… | Expired / Lapsed | 1992-04-30 | 1993-05-04 | 24 | Details |
| US5191339A | Phased-array antenna controller | Expired / Lapsed | 1992-03-05 | 1993-03-02 | 28 | Details |
| US5187487A | Compact wide tunable bandwidth phased array antenna control… | Expired / Lapsed | 1992-03-05 | 1993-02-16 | 41 | Details |
| US5168214A | Multi-rate superresolution time series spectrum analyzer | Expired / Lapsed | 1992-02-03 | 1992-12-01 | 2 | Details |
| US5122732A | Multi-rate superresolution time series spectrum analyzer | Expired / Lapsed | 1991-02-19 | 1992-06-16 | 4 | Details |
| US5085548A | Nut and snap ring position locking device | Expired / Lapsed | 1991-04-30 | 1992-02-04 | 25 | Details |
| US5068597A | Spectral estimation utilizing a minimum free energy method … | Expired / Lapsed | 1989-10-30 | 1991-11-26 | 2 | Details |
| US4949089A | Portable target locator system | Expired / Lapsed | 1989-08-24 | 1990-08-14 | 23 | Details |
| US4872014A | Object identification system and method utilizing radiometry | Expired / Lapsed | 1985-01-31 | 1989-10-03 | 6 | Details |
| US4854724A | Method of and apparatus for thermographic evaluation of spo… | Expired / Lapsed | 1986-03-05 | 1989-08-08 | 22 | Details |
| US4823809A | Periodontal probe system | Expired / Lapsed | 1987-08-21 | 1989-04-25 | 25 | Details |
| US4805475A | Anti-backlash gear assembly | Expired / Lapsed | 1987-07-17 | 1989-02-21 | 8 | Details |
| US4783593A | Optical system for wide angle IR imager | Expired / Lapsed | 1985-12-26 | 1988-11-08 | 7 | Details |
| US4780084A | Landmass simulator | Expired / Lapsed | 1987-05-08 | 1988-10-25 | 19 | Details |
| US4761308A | Process for the preparation of reflective pyrolytic graphite | Expired / Lapsed | 1987-06-22 | 1988-08-02 | 14 | Details |
| US4754446A | Optical recording system using refracted write beam for era… | Expired / Lapsed | 1987-01-23 | 1988-06-28 | 19 | Details |
| US4415980B1 | US4415980B1 - - Google Patents | Expired / Lapsed | 1981-03-02 | 1987-12-29 | 0 | Details |
| USD292926S | Combined data transmitter/receiver modem and security modem… | Expired / Lapsed | 1985-02-19 | 1987-11-24 | 1 | Details |
| US4705033A | Humidification face mask | Expired / Lapsed | 1984-07-19 | 1987-11-10 | 8 | Details |
| US4686629A | Logic cell placement method in computer-aided-customization… | Expired / Lapsed | 1986-07-21 | 1987-08-11 | 22 | Details |
| US4653069A | Spread spectrum correlation receiver | Expired / Lapsed | 1975-11-06 | 1987-03-24 | 14 | Details |
| US4574670A | Multiple angle cutting apparatus | Expired / Lapsed | 1983-11-17 | 1986-03-11 | 6 | Details |
| US4556828A | Electric motor adapted to permit translational motion betwe… | Expired / Lapsed | 1983-11-02 | 1985-12-03 | 32 | Details |
| USRE31962E | LORAN-C navigation apparatus | Expired / Lapsed | 1984-01-05 | 1985-07-30 | 22 | Details |
| US4518256A | Enhanced accuracy optical radar | Expired / Lapsed | 1977-05-23 | 1985-05-21 | 14 | Details |
| US4500602A | Composite protective coating for carbon-carbon substrates | Expired / Lapsed | 1981-08-10 | 1985-02-19 | 14 | Details |
| US4497342A | Flexible retractable cold water pipe for an ocean thermal e… | Expired / Lapsed | 1983-06-20 | 1985-02-05 | 19 | Details |
| US4473752A | Aircraft engine starting with synchronous ac generator | Expired / Lapsed | 1982-05-27 | 1984-09-25 | 5 | Details |
| US4452423A | Magnetically actuated valve | Expired / Lapsed | 1982-08-03 | 1984-06-05 | 14 | Details |
| US4433410A | Protective cartridge for optical discs | Expired / Lapsed | 1982-06-30 | 1984-02-21 | 12 | Details |
| US4386848A | Optical target tracking and designating system | Expired / Lapsed | 1980-08-11 | 1983-06-07 | 23 | Details |
| US4386428A | Tripled Nd:YAG Pumped Tm3+ laser oscillator | Expired / Lapsed | 1980-10-14 | 1983-05-31 | 6 | Details |
| US4361891A | Spread spectrum signal estimator | Expired / Lapsed | 1980-12-22 | 1982-11-30 | 8 | Details |
| US4359223A | Interactive video playback system | Expired / Lapsed | 1979-11-01 | 1982-11-16 | 22 | Details |
| US4355893A | Eye-safe laser cloud height rangefinder | Expired / Lapsed | 1980-09-08 | 1982-10-26 | 22 | Details |
| US4346407A | Apparatus for synchronization of a source of computer contr… | Expired / Lapsed | 1980-06-16 | 1982-08-24 | 32 | Details |
| US4332066A | Compliance mechanism | Expired / Lapsed | 1980-01-07 | 1982-06-01 | 2 | Details |
| US4324285A | Apparatus for heating and cooling devices under test | Expired / Lapsed | 1979-03-12 | 1982-04-13 | 21 | Details |
| US4313185A | Acoustic vibration sensor and sensing system | Expired / Lapsed | 1979-12-31 | 1982-01-26 | 11 | Details |
| US4310814A | Transmission line hybrid junction | Expired / Lapsed | 1980-07-11 | 1982-01-12 | 14 | Details |
| US4298982A | Fault-tolerant interface circuit for parallel digital bus | Expired / Lapsed | 1980-06-03 | 1981-11-03 | 12 | Details |
| US4297584A | Rare earth phosphors and phosphor screens | Expired / Lapsed | 1977-04-11 | 1981-10-27 | 41 | Details |
| US4291404A | Automatic circuit tester with improved voltage regulator | Expired / Lapsed | 1979-11-20 | 1981-09-22 | 5 | Details |
| US4254476A | Associative processor | Expired / Lapsed | 1979-06-25 | 1981-03-03 | 6 | Details |
| US4253469A | Implantable temperature probe | Expired / Lapsed | 1979-04-20 | 1981-03-03 | 8 | Details |
| US4247939A | Spread spectrum detector | Expired / Lapsed | 1978-11-09 | 1981-01-27 | 18 | Details |
| US4245221A | FM-CW Radar ranging system with automatic calibration | Expired / Lapsed | 1979-04-27 | 1981-01-13 | 8 | Details |
| US4243283A | Circuit board guide and ground connector | Expired / Lapsed | 1979-09-17 | 1981-01-06 | 5 | Details |
| US4232456A | Weapons system simulator and method including ranging system | Expired / Lapsed | 1977-06-30 | 1980-11-11 | 30 | Details |
| US4219804A | Sensor for electromagnetic waves caused by nuclear detonati… | Expired / Lapsed | 1967-07-17 | 1980-08-26 | 9 | Details |
| US4171513A | Secure communications system | Expired / Lapsed | 1969-07-22 | 1979-10-16 | 8 | Details |
| US4161033A | Correlator/convolver using a second shift register to rotat… | Expired / Lapsed | 1977-12-22 | 1979-07-10 | 3 | Details |
| US4150380A | LORAN-C equipment alignment | Expired / Lapsed | 1978-02-27 | 1979-04-17 | 4 | Details |
| US4136343A | Multiple source tracking system | Expired / Lapsed | 1977-05-02 | 1979-01-23 | 21 | Details |
| US4135156A | Satellite communications system incorporating ground relay … | Expired / Lapsed | 1974-06-20 | 1979-01-16 | 28 | Details |
| US4126659A | Method of making a hollow article | Expired / Lapsed | 1976-07-09 | 1978-11-21 | 28 | Details |
| US4125808A | Automatic sequential search for a radio relay network | Expired / Lapsed | 1965-06-01 | 1978-11-14 | 51 | Details |
| US4123017A | Dual, non-crossing horizontal gate tracking circuit and met… | Expired / Lapsed | 1970-11-09 | 1978-10-31 | 12 | Details |
| US4122452A | Jamming signal cancellation system | Expired / Lapsed | 1974-07-22 | 1978-10-24 | 24 | Details |
| US4110702A | Deep red laser | Expired / Lapsed | 1976-11-24 | 1978-08-29 | 6 | Details |
| US4106726A | Prestored area correlation tracker | Expired / Lapsed | 1969-11-04 | 1978-08-15 | 31 | Details |
| US4104635A | LORAN-C navigation apparatus | Expired / Lapsed | 1976-11-12 | 1978-08-01 | 29 | Details |
| US4103847A | Line scan area signature detection method | Expired / Lapsed | 1976-02-09 | 1978-08-01 | 16 | Details |
| US4095215A | Pager subsystems | Expired / Lapsed | 1977-03-10 | 1978-06-13 | 18 | Details |
| US4072944A | Imminent collision detection apparatus | Expired / Lapsed | 1969-02-20 | 1978-02-07 | 14 | Details |
| US4052565A | Walsh function signal scrambler | Expired / Lapsed | 1975-05-28 | 1977-10-04 | 26 | Details |
| US4028500A | Mobile unit supervisory control sequencer and method | Expired / Lapsed | 1975-04-21 | 1977-06-07 | 46 | Details |
| US4010637A | Machine vibration monitor and method | Expired / Lapsed | 1975-10-06 | 1977-03-08 | 12 | Details |
| US3995269A | Alignment of a video display system having multiple inputs | Expired / Lapsed | 1974-11-29 | 1976-11-30 | 5 | Details |
| US3984675A | Wideband tunable coherent source | Expired / Lapsed | 1971-02-12 | 1976-10-05 | 3 | Details |
| US3983511A | Normal incidence face pumped disc laser | Expired / Lapsed | 1975-09-08 | 1976-09-28 | 7 | Details |
| US3972007A | Laser | Expired / Lapsed | 1974-04-29 | 1976-07-27 | 7 | Details |
| US3898390A | Multiple zone communications system and method | Expired / Lapsed | 1973-05-15 | 1975-08-05 | 49 | Details |
| US3878376A | Computer operated solenoid valve pressure control system | Expired / Lapsed | 1973-12-17 | 1975-04-15 | 17 | Details |
| US3836974A | Transmitter sequencing method and apparatus | Expired / Lapsed | 1971-10-25 | 1974-09-17 | 18 | Details |
| US3836726A | Data transmission method and apparatus | Expired / Lapsed | 1971-10-25 | 1974-09-17 | 92 | Details |
| US3808591A | Voice warning system | Expired / Lapsed | 1971-08-11 | 1974-04-30 | 19 | Details |
| US3806804A | Radio telephone system having automatic channel selection | Expired / Lapsed | 1966-04-06 | 1974-04-23 | 57 | Details |
| US3799675A | Direction determining system | Expired / Lapsed | 1972-12-07 | 1974-03-26 | 13 | Details |
| US3778160A | Electronic distance measuring device and method | Expired / Lapsed | 1970-12-18 | 1973-12-11 | 24 | Details |
| US3772676A | Character display system | Expired / Lapsed | 1972-04-18 | 1973-11-13 | 16 | Details |
| US3769974A | Blood pulse measuring employing reflected red light | Expired / Lapsed | 1971-06-29 | 1973-11-06 | 3 | Details |
| US3758782A | Light pen apparatus | Expired / Lapsed | 1972-07-21 | 1973-09-11 | 8 | Details |
| US3730628A | Electronic distance measuring method and apparatus | Expired / Lapsed | 1970-12-16 | 1973-05-01 | 32 | Details |
| US3728480A | Television gaming and training apparatus | Expired / Lapsed | 1971-03-22 | 1973-04-17 | 50 | Details |
| US3711361A | Expansion permitting arrangement and method of joining memb… | Expired / Lapsed | 1970-10-27 | 1973-01-16 | 0 | Details |
| US3709522A | Towbar apparatus | Expired / Lapsed | 1971-08-27 | 1973-01-09 | 36 | Details |
| US3708786A | Stored program format generator | Expired / Lapsed | 1971-10-20 | 1973-01-02 | 8 | Details |
| US3704070A | Direction determining system | Expired / Lapsed | 1971-05-24 | 1972-11-28 | 24 | Details |
| US3701964A | Flat cable electrical wiring system | Expired / Lapsed | 1970-09-04 | 1972-10-31 | 27 | Details |
| US3668687A | Raster scan symbol generator | Expired / Lapsed | 1969-11-17 | 1972-06-06 | 17 | Details |
| US3662384A | Doppler mapping radar | Expired / Lapsed | 1957-03-13 | 1972-05-09 | 23 | Details |
| US3659290A | Apparatus for providing sensitivity-time control for radar … | Expired / Lapsed | 1970-08-03 | 1972-04-25 | 9 | Details |
| US3659285A | Television gaming apparatus and method | Expired / Lapsed | 1969-08-21 | 1972-04-25 | 20 | Details |
| US3622877A | Apparatus for testing modulator demodulator units for trans… | Expired / Lapsed | 1969-11-07 | 1971-11-23 | 8 | Details |
| US3623015A | Statistical pattern recognition system with continual updat… | Expired / Lapsed | 1969-09-29 | 1971-11-23 | 22 | Details |
| US3614237A | Method and apparatus for contour measurement | Expired / Lapsed | 1969-01-21 | 1971-10-19 | 15 | Details |
| US3613054A | Scanning encoder | Expired / Lapsed | 1969-12-04 | 1971-10-12 | 11 | Details |
| US3613082A | Logic evaluator and adaptive recognition network | Expired / Lapsed | 1969-06-30 | 1971-10-12 | 34 | Details |
| US3605728A | Current limiting safety electrode lead | Expired / Lapsed | 1969-06-19 | 1971-09-20 | 0 | Details |
| US3603691A | Laser control for automatic alignment of structures | Expired / Lapsed | 1969-07-25 | 1971-09-07 | 24 | Details |
| US3597755A | Active electro-optical intrusion alarm system having automa… | Expired / Lapsed | 1968-05-28 | 1971-08-03 | 9 | Details |
| US3588875A | Character encoder | Expired / Lapsed | 1966-10-10 | 1971-06-28 | 0 | Details |
| US3582633A | Method and apparatus for fault detection in a logic circuit | Expired / Lapsed | 1968-02-20 | 1971-06-01 | 12 | Details |
| US3581287A | Apparatus for altering computer memory by bit, byte or word | Expired / Lapsed | 1969-02-10 | 1971-05-25 | 22 | Details |
| US3579197A | Apparatus for programmable control of electromechanical dev… | Expired / Lapsed | 1969-02-28 | 1971-05-18 | 66 | Details |
| US3565531A | Electro-optical thickness measurement apparatus | Expired / Lapsed | 1969-03-12 | 1971-02-23 | 0 | Details |
| US3566119A | Infrared scanning device using a spherical lens | Expired / Lapsed | 1967-10-06 | 1971-02-23 | 4 | Details |
| US3560991A | Station keeping,collision avoidance and position fixing sys… | Expired / Lapsed | 1968-08-26 | 1971-02-02 | 0 | Details |
| US3548378A | Integrated parameter display of galvanometer reading | Expired / Lapsed | 1966-02-03 | 1970-12-15 | 0 | Details |
| US3544972A | Digital plotting system | Expired / Lapsed | 1967-12-13 | 1970-12-01 | 0 | Details |
| US3543269A | System for displaying video information and related indicia… | Expired / Lapsed | 1968-07-02 | 1970-11-24 | 0 | Details |
| US3525330A | Surgical garment prescription method and apparatus | Expired / Lapsed | 1966-02-24 | 1970-08-25 | 0 | Details |
| US3524932A | Physiological communications system | Expired / Lapsed | 1968-09-10 | 1970-08-18 | 0 | Details |
| US3518555A | Pulse train detectors | Expired / Lapsed | 1967-12-07 | 1970-06-30 | 0 | Details |
| US3509624A | Method of making multilayer printed circuits | Expired / Lapsed | 1967-09-11 | 1970-05-05 | 0 | Details |
| US3508561A | Method of and means for controlling fluid flows | Expired / Lapsed | 1967-03-20 | 1970-04-28 | 0 | Details |
| US3504352A | Time compression system | Expired / Lapsed | 1968-05-24 | 1970-03-31 | 0 | Details |
| US3503012A | Optical differential interferometer discriminator for fm to… | Expired / Lapsed | 1967-11-13 | 1970-03-24 | 0 | Details |
| US3501746A | Editing display system | Expired / Lapsed | 1965-10-27 | 1970-03-17 | 0 | Details |
| US3498291A | Body signal sensing electrode apparatus | Expired / Lapsed | 1966-02-10 | 1970-03-03 | 0 | Details |
| US3482309A | Intensity control for vector generators having uniform vect… | Expired / Lapsed | 1966-04-28 | 1969-12-09 | 0 | Details |
| US3480779A | Radiant energy target acquisition and tracking logic system | Expired / Lapsed | 1965-12-27 | 1969-11-25 | 0 | Details |
| US3467958A | Analog to digital converter using a plurality of radix ampl… | Expired / Lapsed | 1965-12-29 | 1969-09-16 | 0 | Details |
| US3464330A | Optical writing device | Expired / Lapsed | 1967-11-24 | 1969-09-02 | 0 | Details |
| US3463924A | Opposite circularly-polarized optical heterodyne detection … | Expired / Lapsed | 1966-12-16 | 1969-08-26 | 0 | Details |
| US3461416A | Pressure transducer utilizing semiconductor beam | Expired / Lapsed | 1967-12-04 | 1969-08-12 | 0 | Details |
| US3461365A | Display system and methods | Expired / Lapsed | 1964-10-26 | 1969-08-12 | 0 | Details |
| US3457630A | Fluxless brazing of aluminum | Expired / Lapsed | 1967-03-06 | 1969-07-29 | 0 | Details |
| US3456316A | Double-land end mills | Expired / Lapsed | 1967-08-31 | 1969-07-22 | 0 | Details |
| US3452223A | Shaping circuit | Expired / Lapsed | 1965-08-20 | 1969-06-24 | 1 | Details |
| US3444528A | Redundant computer systems | Expired / Lapsed | 1966-11-17 | 1969-05-13 | 0 | Details |
| US3430047A | Background cancelling optical detection system | Expired / Lapsed | 1965-01-04 | 1969-02-25 | 0 | Details |
| US3426150A | System for fm transmission of cardiological data over telep… | Expired / Lapsed | 1965-09-27 | 1969-02-04 | 0 | Details |
| US3425038A | Graphical display plotter | Expired / Lapsed | 1966-05-03 | 1969-01-28 | 0 | Details |
| US3423574A | Electrical resistance heating pad | Expired / Lapsed | 1965-10-14 | 1969-01-21 | 0 | Details |
| US3422441A | Binary code data recorder system | Expired / Lapsed | 1965-09-13 | 1969-01-14 | 0 | Details |
| US3420739A | Closed ecological system for the support of animal life and… | Expired / Lapsed | 1963-09-23 | 1969-01-07 | 2 | Details |
| US3419883A | Data acquisition and recording system | Expired / Lapsed | 1964-05-05 | 1968-12-31 | 0 | Details |
| US3409007A | Body electrode support garment | Expired / Lapsed | 1965-11-26 | 1968-11-05 | 0 | Details |
| US3409368A | Ranging device | Expired / Lapsed | 1964-01-07 | 1968-11-05 | 0 | Details |
| US3405387A | Acoustical underwater control apparatus | Expired / Lapsed | 1965-10-24 | 1968-10-08 | 0 | Details |
| US3394533A | Liquid-gas separator | Expired / Lapsed | 1966-06-17 | 1968-07-30 | 0 | Details |
| US3393300A | Apparatus to control a number of graphical plotting machine… | Expired / Lapsed | 1963-07-29 | 1968-07-16 | 2 | Details |
| US3391392A | Method and apparatus for pattern data processing | Expired / Lapsed | 1965-10-18 | 1968-07-02 | 0 | Details |
| US3389393A | Low profile broadband microwave antenna system | Expired / Lapsed | 1966-02-18 | 1968-06-18 | 0 | Details |
| US3386079A | Error reducing device | Expired / Lapsed | 1964-10-01 | 1968-05-28 | 0 | Details |
| US3386078A | Self-authenticating pulse detector | Expired / Lapsed | 1964-09-21 | 1968-05-28 | 0 | Details |
| US3385723A | Carbon article coated with beta silicon carbide | Expired / Lapsed | 1964-06-26 | 1968-05-28 | 0 | Details |
| US3386081A | Pulse sampling and comparison system suitable for use with … | Expired / Lapsed | 1964-02-28 | 1968-05-28 | 0 | Details |
| US3382460A | Linearly swept frequency generator | Expired / Lapsed | 1967-09-11 | 1968-05-07 | 2 | Details |
| US3374398A | Magnetic circuit protective device | Expired / Lapsed | 1966-01-07 | 1968-03-19 | 0 | Details |
| US3374129A | Method of producing printed circuits | Expired / Lapsed | 1963-05-02 | 1968-03-19 | 2 | Details |
| US3370244A | Transistor amplifier temperature stabilization circuits | Expired / Lapsed | 1965-03-24 | 1968-02-20 | 0 | Details |
| US3364484A | Low ambiguity radar scanning | Expired / Lapsed | 1963-09-09 | 1968-01-16 | 2 | Details |
| US3355942A | Man-carried auto-navigation device | Expired / Lapsed | 1965-05-14 | 1967-12-05 | 4 | Details |
| US3353914A | Method of seed-pulling beta silicon carbide crystals from a… | Expired / Lapsed | 1964-12-30 | 1967-11-21 | 3 | Details |
| US3352196A | Sighting device which superimposes the image of target with… | Expired / Lapsed | 1963-09-03 | 1967-11-14 | 1 | Details |
| US3340529A | Fm altimeter with reduced step error | Expired / Lapsed | 1963-06-11 | 1967-09-05 | 2 | Details |
| US3339181A | Associative memory system for sequential retrieval of data | Expired / Lapsed | 1963-11-27 | 1967-08-29 | 2 | Details |
| US3331035A | Frequency synthesizer | Expired / Lapsed | 1965-08-23 | 1967-07-11 | 2 | Details |
| US3327067A | Cockpit sound recorder | Expired / Lapsed | 1963-02-04 | 1967-06-20 | 2 | Details |
| US3308908A | Energy absorber | Expired / Lapsed | 1965-01-11 | 1967-03-14 | 2 | Details |
| US3307139A | Flat cable connector | Expired / Lapsed | 1965-05-12 | 1967-02-28 | 2 | Details |
| US3305689A | Electro-optical signal converter system | Expired / Lapsed | 1963-06-26 | 1967-02-21 | 2 | Details |
| US3296444A | Optical target sensing device using variable density filters | Expired / Lapsed | 1963-08-02 | 1967-01-03 | 2 | Details |
| US3295134A | Antenna system for radiating directional patterns | Expired / Lapsed | 1965-11-12 | 1966-12-27 | 1 | Details |
| US3294332A | Incremental magnetic tape recorder | Expired / Lapsed | 1964-04-16 | 1966-12-27 | 2 | Details |
| US3287128A | Lithographic plates and coatings | Expired / Lapsed | 1963-04-22 | 1966-11-22 | 2 | Details |
| US3278926A | Digital graphical display system | Expired / Lapsed | 1962-12-14 | 1966-10-11 | 2 | Details |
| US3278864A | High frequency power transfer unit | Expired / Lapsed | 1960-06-28 | 1966-10-11 | 1 | Details |
| US3274552A | Adaptive missile control system | Expired / Lapsed | 1962-06-25 | 1966-09-20 | 2 | Details |
| US3267333A | Modular electronic package | Expired / Lapsed | 1964-02-28 | 1966-08-16 | 2 | Details |
| US3264133A | Electroluminescent phosphors and method for making same | Expired / Lapsed | 1962-05-02 | 1966-08-02 | 2 | Details |
| US3262003A | Perforated hollow cathode discharge device | Expired / Lapsed | 1962-05-25 | 1966-07-19 | 2 | Details |
| US3259971A | High temperature braze alloy and method of using the same f… | Expired / Lapsed | 1962-12-10 | 1966-07-12 | 4 | Details |
| US3260273A | Motor valve having differential pressure feedback | Expired / Lapsed | 1960-04-04 | 1966-07-12 | 2 | Details |
| US3246435A | Building of composite panels with interfitting posts and ro… | Expired / Lapsed | 1962-04-23 | 1966-04-19 | 0 | Details |
| US3239761A | Discrete address communication system with random access ca… | Expired / Lapsed | 1961-05-02 | 1966-03-08 | 0 | Details |
| US3236333A | Energy absorber | Expired / Lapsed | 1963-06-17 | 1966-02-22 | 2 | Details |
| US3237159A | High speed comparator | Expired / Lapsed | 1961-12-07 | 1966-02-22 | 2 | Details |
| US3226569A | Failure detection circuits for redundant systems | Expired / Lapsed | 1962-07-30 | 1965-12-28 | 1 | Details |
| US3222535A | System for detection of utilization of maximum available po… | Expired / Lapsed | 1961-11-10 | 1965-12-07 | 2 | Details |
| US3219295A | Triple safety control system | Expired / Lapsed | 1963-07-10 | 1965-11-23 | 2 | Details |
| US3220010A | Azimuth-elevation plotter | Expired / Lapsed | 1963-02-18 | 1965-11-23 | 2 | Details |
| US3216261A | Apparatus for counting pulses | Expired / Lapsed | 1964-08-18 | 1965-11-09 | 2 | Details |
| US3216089A | Method of connecting electrical components to spaced frame … | Expired / Lapsed | 1963-03-11 | 1965-11-09 | 2 | Details |
| US3211822A | Heat dissipating and shielding structure for mounting elect… | Expired / Lapsed | 1962-11-15 | 1965-10-12 | 2 | Details |
| US3212014A | Maximum likelihood detector | Expired / Lapsed | 1962-02-06 | 1965-10-12 | 2 | Details |
| US3208936A | Antiseptic re-circulating toilet sump compositions | Expired / Lapsed | 1960-08-22 | 1965-09-28 | 2 | Details |
| US3204102A | Elevation finder for infrared device | Expired / Lapsed | 1963-01-24 | 1965-08-31 | 1 | Details |
| US3204153A | Relaxation divider | Expired / Lapsed | 1962-05-15 | 1965-08-31 | 2 | Details |
| US3201851A | Method of making interconnecting multilayer circuits | Expired / Lapsed | 1960-10-05 | 1965-08-24 | 2 | Details |
| US3189746A | Expansion and compression of electronic pulses by optical c… | Expired / Lapsed | 1961-11-03 | 1965-06-15 | 2 | Details |
| US3180989A | Cryogenic flask for a cooled infrared detector including an… | Expired / Lapsed | 1962-01-11 | 1965-04-27 | 2 | Details |
| US3177362A | Infrared tracker | Expired / Lapsed | 1961-10-02 | 1965-04-06 | 2 | Details |
| US3165952A | Automatic positioning system having tape responsive servo m… | Expired / Lapsed | 1961-01-06 | 1965-01-19 | 2 | Details |
| US3159790A | Low noise, multiple mixer system | Expired / Lapsed | 1960-07-18 | 1964-12-01 | 2 | Details |
| US3153196A | Optimum coding technique | Expired / Lapsed | 1962-04-19 | 1964-10-13 | 2 | Details |
| US3146413A | Phase shifter | Expired / Lapsed | 1960-08-29 | 1964-08-25 | 2 | Details |
| US3142806A | Nonreference pulse position demodulator | Expired / Lapsed | 1961-06-29 | 1964-07-28 | 2 | Details |
| US3139786A | Fastening device | Expired / Lapsed | 1958-01-06 | 1964-07-07 | 0 | Details |
| US3137295A | Fresh air face seal | Expired / Lapsed | 1960-12-27 | 1964-06-16 | 0 | Details |
| US3121771A | Electrical connector | Expired / Lapsed | 1960-09-15 | 1964-02-18 | 2 | Details |
| US3121337A | Piezoresistive transducer employing oxygen-deficient rutile… | Expired / Lapsed | 1959-11-24 | 1964-02-18 | 1 | Details |
| US3119998A | Object locating systems | Expired / Lapsed | 1956-09-21 | 1964-01-28 | 2 | Details |
| US3117692A | Container and lid assembly | Expired / Lapsed | 1962-01-08 | 1964-01-14 | 2 | Details |
| US3110030A | Cone mounted logarithmic dipole array antenna | Expired / Lapsed | 1961-05-25 | 1963-11-05 | 1 | Details |
| US3107216A | Re-circulating toilet sump foaming compositions and method … | Expired / Lapsed | 1961-01-25 | 1963-10-15 | 2 | Details |
| US3099054A | Flexible multi-purpose clamp | Expired / Lapsed | 1961-04-24 | 1963-07-30 | 0 | Details |
| US3089091A | Sequential sampling system using commutating devices provid… | Expired / Lapsed | 1959-04-07 | 1963-05-07 | 2 | Details |
| US3086708A | Method and apparatus for automatic digital process control | Expired / Lapsed | 1961-10-30 | 1963-04-23 | 1 | Details |
| US3084770A | Brazed honeycomb structures | Expired / Lapsed | 1961-12-14 | 1963-04-09 | 2 | Details |
| US3085190A | Static inverter | Expired / Lapsed | 1960-07-18 | 1963-04-09 | 2 | Details |
| US3084338A | Master caution light control | Expired / Lapsed | 1960-07-29 | 1963-04-02 | 2 | Details |
| US3083615A | Optical apparatus for making and reconstructing holograms | Expired / Lapsed | 1960-05-16 | 1963-04-02 | 2 | Details |
| US3084065A | Coating composition comprising an organic solvent solution … | Expired / Lapsed | 1959-04-15 | 1963-04-02 | 2 | Details |
| US3074043A | Printed circuit automotive dashboard | Expired / Lapsed | 1961-05-11 | 1963-01-15 | 1 | Details |
| US3070650A | Solder connection for electrical circuits | Expired / Lapsed | 1960-09-23 | 1962-12-25 | 0 | Details |
| US3069753A | Method of making a flat flexible cable termination | Expired / Lapsed | 1958-03-31 | 1962-12-25 | 0 | Details |
| US3061239A | Magnetic moment device for applying corrective torque to a … | Expired / Lapsed | 1960-08-04 | 1962-10-30 | 0 | Details |
| US3059235A | Impact recorder | Expired / Lapsed | 1960-03-07 | 1962-10-16 | 0 | Details |
| US3059116A | Photoelectric sampling switch | Expired / Lapsed | 1959-09-08 | 1962-10-16 | 0 | Details |
| US3047257A | Device for changing airfoil profile | Expired / Lapsed | 1958-04-24 | 1962-07-31 | 0 | Details |
| US3045476A | Vibration testing device | Expired / Lapsed | 1960-02-09 | 1962-07-24 | 0 | Details |
| US3045232A | Electronic velocity indicator apparatus | Expired / Lapsed | 1956-03-30 | 1962-07-17 | 0 | Details |
| US3043992A | Sawtooth wave generator | Expired / Lapsed | 1958-01-24 | 1962-07-10 | 0 | Details |
| US3034011A | Combined optical and electronic circuit devices | Expired / Lapsed | 1959-12-03 | 1962-05-08 | 0 | Details |
| US3026773A | Rocket nose installation | Expired / Lapsed | 1950-01-26 | 1962-03-27 | 0 | Details |
| US3014364A | Means for testing bond strength | Expired / Lapsed | 1956-06-25 | 1961-12-26 | 0 | Details |
| US3006819A | Method of photo-plating electrical circuits | Expired / Lapsed | 1955-06-13 | 1961-10-31 | 0 | Details |
| US2989787A | Fail-safe windows | Expired / Lapsed | 1957-02-13 | 1961-06-27 | 0 | Details |
| US2963392A | Method of splicing printed circuits | Expired / Lapsed | 1958-05-07 | 1960-12-06 | 2 | Details |
| US2962002A | Two-stage hydraulic servo valve | Expired / Lapsed | 1956-04-10 | 1960-11-29 | 0 | Details |
| US2946877A | Printed circuit article | Expired / Lapsed | 1958-02-14 | 1960-07-26 | 0 | Details |
| US2929794A | Composition comprising polyester-polyisocyanate reaction pr… | Expired / Lapsed | 1954-09-13 | 1960-03-22 | 2 | Details |
| US2924883A | Deflection measuring device | Expired / Lapsed | 1956-09-11 | 1960-02-16 | 0 | Details |
| US2905385A | Ratio computer having an unbalancing circuit in the feedbac… | Expired / Lapsed | 1954-08-09 | 1959-09-22 | 0 | Details |
| US2904682A | Frequency ratio detector | Expired / Lapsed | 1955-08-22 | 1959-09-15 | 0 | Details |
| US2903035A | Barrel nut retainer having flexible resilient overlying web | Expired / Lapsed | 1955-04-15 | 1959-09-08 | 0 | Details |
| US2894919A | Flexible resilient cellular polyurethane resin products | Expired / Lapsed | 1954-08-02 | 1959-07-14 | 2 | Details |
| US2880417A | Traveling wave device | Expired / Lapsed | 1955-02-11 | 1959-03-31 | 0 | Details |
| US2876393A | Printed circuit baseboard | Expired / Lapsed | 1956-05-15 | 1959-03-03 | 0 | Details |
| US2876390A | Mounting device for electrical components | Expired / Lapsed | 1953-12-09 | 1959-03-03 | 0 | Details |
| US2876391A | Electrical circuit assembly | Expired / Lapsed | 1953-12-09 | 1959-03-03 | 0 | Details |
| US2866925A | Transistor operated relay | Expired / Lapsed | 1955-09-30 | 1958-12-30 | 0 | Details |
| US2845619A | Target identification discriminator | Expired / Lapsed | 1955-08-22 | 1958-07-29 | 0 | Details |
| US2839930A | Gyroscope | Expired / Lapsed | 1953-11-12 | 1958-06-24 | 0 | Details |
| US2826437A | Flexible coupling for rigid beaded tubes | Expired / Lapsed | 1954-11-30 | 1958-03-11 | 0 | Details |
| US2816253A | Electronic module structure | Expired / Lapsed | 1953-12-23 | 1957-12-10 | 0 | Details |
| US2816252A | Electronic module device | Expired / Lapsed | 1953-11-12 | 1957-12-10 | 0 | Details |
| US2814210A | Cable tension regulator | Expired / Lapsed | 1954-09-30 | 1957-11-26 | 0 | Details |
| US2812501A | Transmission line | Expired / Lapsed | 1954-03-04 | 1957-11-05 | 0 | Details |
| US2811493A | Elastomeric cellular products obtained from alkyd resin-dii… | Expired / Lapsed | 1953-05-11 | 1957-10-29 | 2 | Details |
| US2802648A | Proportioning and mixing fluid dispensing device | Expired / Lapsed | 1953-12-01 | 1957-08-13 | 0 | Details |
| US2802240A | Method of making cellular plastic articles | Expired / Lapsed | 1951-10-26 | 1957-08-13 | 2 | Details |
| US2797174A | Method for providing protective metal coatings on metal | Expired / Lapsed | 1952-05-23 | 1957-06-25 | 2 | Details |
| US2795273A | Speed registering device | Expired / Lapsed | 1954-02-26 | 1957-06-11 | 0 | Details |
| US2784926A | Protected aircraft enclosures | Expired / Lapsed | 1953-03-30 | 1957-03-12 | 0 | Details |
| US2779998A | Method of forming a mechanical and electrical connection | Expired / Lapsed | 1952-01-30 | 1957-02-05 | 0 | Details |
| US2780350A | Package with cellular plastic packaging means | Expired / Lapsed | 1951-12-11 | 1957-02-05 | 0 | Details |
| US2772246A | Cellular phenol aldehyde plastic resins | Expired / Lapsed | 1952-08-06 | 1956-11-27 | 2 | Details |
| US2772245A | Resilient cellular resin products | Expired / Lapsed | 1952-04-26 | 1956-11-27 | 2 | Details |
| US2767461A | Method of making propeller or rotor blade | Expired / Lapsed | 1951-03-27 | 1956-10-23 | 0 | Details |
| US2764566A | Polyisocyanate-alkyd resin-substituted polymethylol phenol … | Expired / Lapsed | 1953-03-16 | 1956-09-25 | 1 | Details |
| US2756624A | Blind rivet with locked mandrel | Expired / Lapsed | 1952-05-06 | 1956-07-31 | 0 | Details |
| US2755550A | Reefing line cutter | Expired / Lapsed | 1955-10-07 | 1956-07-24 | 0 | Details |
| US2738772A | Automatic pilot-hydraulic booster system | Expired / Lapsed | 1954-07-21 | 1956-03-20 | 0 | Details |
| US2737051A | Pressure measuring device | Expired / Lapsed | 1950-09-23 | 1956-03-06 | 0 | Details |
| US2728741A | Phenol-formaldehyde resins for foaming compositions | Expired / Lapsed | 1952-11-01 | 1955-12-27 | 2 | Details |
| US2728702A | Composite cellular plastic structure | Expired / Lapsed | 1951-07-13 | 1955-12-27 | 4 | Details |
| US2724782A | Phase sequence correcting circuit | Expired / Lapsed | 1953-04-15 | 1955-11-22 | 0 | Details |
| US2722587A | Electric strain sensing device | Expired / Lapsed | 1953-03-20 | 1955-11-01 | 0 | Details |
| US2712874A | Portable aircraft lifting cradle | Expired / Lapsed | 1950-05-12 | 1955-07-12 | 0 | Details |
| US2707272A | Mounting device for electric components | Expired / Lapsed | 1954-05-21 | 1955-04-26 | 0 | Details |
| US2702678A | Cargo loader for aircraft | Expired / Lapsed | 1950-09-23 | 1955-02-22 | 0 | Details |
| US2696451A | Plastic edge attachment | Expired / Lapsed | 1946-02-08 | 1954-12-07 | 2 | Details |
| US2686244A | Electrical attachnent of temperature sensing devices and th… | Expired / Lapsed | 1951-04-19 | 1954-08-10 | 0 | Details |
| US2683002A | Blast chute | Expired / Lapsed | 1952-06-28 | 1954-07-06 | 0 | Details |
| US2677270A | Vibration, acceleration, pressure, and position pickup devi… | Expired / Lapsed | 1949-03-25 | 1954-05-04 | 0 | Details |
| US2669209A | Die assembly for utilizing hydrostatic pressure in a deep b… | Expired / Lapsed | 1949-11-22 | 1954-02-16 | 0 | Details |
| US2659528A | Gas turbine compressor system | Expired / Lapsed | 1948-09-29 | 1953-11-17 | 0 | Details |
| US2654020A | Indirect instrument illumination | Expired / Lapsed | 1949-12-10 | 1953-09-29 | 0 | Details |
| US2642920A | Housing for electrical apparatus | Expired / Lapsed | 1950-10-04 | 1953-06-23 | 2 | Details |
| US2642403A | Cellular plastics containing saturated and unsaturated poly… | Expired / Lapsed | 1951-01-11 | 1953-06-16 | 1 | Details |
| US2639252A | Method of making housing for electrical apparatus | Expired / Lapsed | 1949-02-17 | 1953-05-19 | 2 | Details |
| US2634244A | Cellular plastics having foam stabilizing additives | Expired / Lapsed | 1950-11-09 | 1953-04-07 | 2 | Details |
| US2621276A | Electrical strain gauge and method of making same | Expired / Lapsed | 1949-12-09 | 1952-12-09 | 0 | Details |
| US2621002A | Steerable landing gear for airplanes | Expired / Lapsed | 1948-11-23 | 1952-12-09 | 0 | Details |
| US2602783A | Cellular foamed alkyd-diisocyanate resins | Expired / Lapsed | 1949-01-14 | 1952-07-08 | 1 | Details |
| US2591884A | Alkyd resin-diisocyanate cellular foamed plastics | Expired / Lapsed | 1949-02-17 | 1952-04-08 | 1 | Details |
| US2577279A | Foamed alkyd-isocyanate plastics | Expired / Lapsed | 1948-06-25 | 1951-12-04 | 2 | Details |
| US2575687A | Heat, flame, and fire resistant sealants | Expired / Lapsed | 1948-11-19 | 1951-11-20 | 2 | Details |
| US2575682A | Reaction propulsion aircraft power plant having independent… | Expired / Lapsed | 1944-02-14 | 1951-11-20 | 0 | Details |
| US2550357A | Sealable fastening device | Expired / Lapsed | 1945-03-30 | 1951-04-24 | 0 | Details |
| US2540594A | Ram jet engine having variable area inlets | Expired / Lapsed | 1946-08-23 | 1951-02-06 | 0 | Details |
| US2532773A | Quick-disconnect duct joint | Expired / Lapsed | 1947-08-15 | 1950-12-05 | 0 | Details |
| US2526327A | Windshield deicer | Expired / Lapsed | 1944-09-25 | 1950-10-17 | 0 | Details |
| US2520373A | Turbine blade and method of making the same | Expired / Lapsed | 1945-01-24 | 1950-08-29 | 0 | Details |
| US2514798A | Reversible or berthable seat | Expired / Lapsed | 1947-06-12 | 1950-07-11 | 0 | Details |
| US2512790A | Control and indicator for supersonic vehicles | Expired / Lapsed | 1948-01-09 | 1950-06-27 | 0 | Details |
| US2511495A | Universal and slip joint | Expired / Lapsed | 1943-09-06 | 1950-06-13 | 0 | Details |
| US2504422A | Aircraft engine and fuselage arrangement | Expired / Lapsed | 1950-01-05 | 1950-04-18 | 0 | Details |
| US2504421A | Aircraft engine and fuselage arrangement | Expired / Lapsed | 1946-04-25 | 1950-04-18 | 0 | Details |
| US2497441A | Hydraulic coupling | Expired / Lapsed | 1945-03-19 | 1950-02-14 | 0 | Details |
| US2479713A | Canopy control and jettisoning mechanism | Expired / Lapsed | 1947-12-13 | 1949-08-23 | 0 | Details |
| US2479777A | Fuel injection means for gas turbine power plants for aircr… | Expired / Lapsed | 1945-02-16 | 1949-08-23 | 0 | Details |
| US2468461A | Nozzle ring construction for turbopower plants | Expired / Lapsed | 1943-05-22 | 1949-04-26 | 0 | Details |
| US2458032A | Method of cementing methyl methacrylate plastics | Expired / Lapsed | 1944-08-22 | 1949-01-04 | 0 | Details |
| US2448824A | Rotary turbine-type hydraulic coupling | Expired / Lapsed | 1944-11-24 | 1948-09-07 | 0 | Details |
| US2437814A | Sealing means | Expired / Lapsed | 1944-05-25 | 1948-03-16 | 0 | Details |
| US2437546A | Supercharged engine control | Expired / Lapsed | 1943-03-18 | 1948-03-09 | 0 | Details |
| US2433456A | Variable transparency closure | Expired / Lapsed | 1945-06-19 | 1947-12-30 | 0 | Details |
| US2424901A | Valve for pressure fluid servomotors | Expired / Lapsed | 1943-08-09 | 1947-07-29 | 0 | Details |
| US2421685A | Alignable pulley | Expired / Lapsed | 1944-07-26 | 1947-06-03 | 0 | Details |
| US2417347A | Vibration damper | Expired / Lapsed | 1943-07-06 | 1947-03-11 | 0 | Details |
| US2412731A | Stretch forming machine | Expired / Lapsed | 1944-05-10 | 1946-12-17 | 0 | Details |
| US2409808A | Glazing unit | Expired / Lapsed | 1942-02-19 | 1946-10-22 | 0 | Details |
| US2405670A | Pressurizing equipment for aircraft | Expired / Lapsed | 1942-08-17 | 1946-08-13 | 0 | Details |
| US2398160A | Safety clip | Expired / Lapsed | 1943-09-22 | 1946-04-09 | 0 | Details |
| US2396901A | Detachable plug | Expired / Lapsed | 1943-01-02 | 1946-03-19 | 0 | Details |
| US2392804A | Method of making molded drill jigs | Expired / Lapsed | 1941-10-13 | 1946-01-15 | 0 | Details |
| US2389274A | Aircraft control system | Expired / Lapsed | 1941-02-04 | 1945-11-20 | 0 | Details |
| US2382631A | Optical gun sight | Expired / Lapsed | 1943-03-18 | 1945-08-14 | 0 | Details |
| US2382289A | Force gauge | Expired / Lapsed | 1942-12-07 | 1945-08-14 | 0 | Details |
| US2379542A | Indicating signal | Expired / Lapsed | 1943-06-03 | 1945-07-03 | 0 | Details |
| US2379183A | Auxiliary steam plant for aircraft | Expired / Lapsed | 1942-07-30 | 1945-06-26 | 0 | Details |
| US2367035A | Transparent canopy mounting | Expired / Lapsed | 1941-10-13 | 1945-01-09 | 0 | Details |
| US2363181A | Strain gauge | Expired / Lapsed | 1943-07-12 | 1944-11-21 | 0 | Details |
| US2362887A | Gun turret | Expired / Lapsed | 1940-05-16 | 1944-11-14 | 0 | Details |
| US2358485A | Transparent panel mounting | Expired / Lapsed | 1941-04-28 | 1944-09-19 | 0 | Details |
| US2320008A | Solenoid operated valve | Expired / Lapsed | 1941-04-18 | 1943-05-25 | 0 | Details |
| US2308669A | Composite control cable | Expired / Lapsed | 1939-05-05 | 1943-01-19 | 0 | Details |
| US2293656A | Transparent closure and mounting | Expired / Lapsed | 1942-01-03 | 1942-08-18 | 0 | Details |
| US2271226A | Airplane | Expired / Lapsed | 1938-10-31 | 1942-01-27 | 0 | Details |
| US2225845A | Cable lock | Expired / Lapsed | 1938-11-28 | 1940-12-24 | 0 | Details |