Douglas Aircraft Co Inc
Douglas AiActive Patents
0
Total Holdings
55
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US3391050A | Glass filament tape | Expired / Lapsed | 1964-04-03 | 1968-07-02 | 0 | Details |
| US3346422A | Method of making inorganic permselective membranes | Expired / Lapsed | 1963-11-29 | 1967-10-10 | 2 | Details |
| US3295364A | Computing accelerometer | Expired / Lapsed | 1964-01-30 | 1967-01-03 | 2 | Details |
| US3273393A | Bathythermograph | Expired / Lapsed | 1964-03-24 | 1966-09-20 | 2 | Details |
| US3263224A | Salinity monitor | Expired / Lapsed | 1963-06-25 | 1966-07-26 | 2 | Details |
| US3211901A | Nonlinear function generating means | Expired / Lapsed | 1959-08-31 | 1965-10-12 | 2 | Details |
| US3149848A | Hydraulic cap and pressure ring seal | Expired / Lapsed | 1960-11-14 | 1964-09-22 | 2 | Details |
| US3140710A | Method and apparatus for automatically analyzing disorders … | Expired / Lapsed | 1960-02-29 | 1964-07-14 | 2 | Details |
| US3136154A | Fatigue monitor | Expired / Lapsed | 1958-11-20 | 1964-06-09 | 2 | Details |
| US3136726A | Fire-resistant hydraulic fluid and lubricant | Expired / Lapsed | 1957-06-28 | 1964-06-09 | 2 | Details |
| US3118841A | Lubrication and hydraulic fluid composition | Expired / Lapsed | 1960-02-09 | 1964-01-21 | 2 | Details |
| US2923130A | High speed hydraulic press system and method | Expired / Lapsed | 1955-09-26 | 1960-02-02 | 0 | Details |
| US2918183A | Air cushion cargo handling system | Expired / Lapsed | 1958-06-11 | 1959-12-22 | 0 | Details |
| US2838210A | Sealant dispensing device | Expired / Lapsed | 1954-12-21 | 1958-06-10 | 0 | Details |
| US2834998A | Means for mounting a frangible expanse to a vibratile suppo… | Expired / Lapsed | 1954-01-25 | 1958-05-20 | 0 | Details |
| US2771850A | High-pressure hydraulic press | Expired / Lapsed | 1952-03-11 | 1956-11-27 | 0 | Details |
| US2759356A | Weight and balance indicator | Expired / Lapsed | 1952-10-20 | 1956-08-21 | 0 | Details |
| FR1075570A | Improvements in apparatus and method for imparting foil mat… | Expired / Lapsed | 1953-03-10 | 1954-10-18 | 0 | Details |
| US2691092A | Safety work light | Expired / Lapsed | 1950-12-30 | 1954-10-05 | 0 | Details |
| US2670314A | Method for making honeycomb cores for sandwich type structu… | Expired / Lapsed | 1948-03-18 | 1954-02-23 | 2 | Details |
| US2620980A | Counting device | Expired / Lapsed | 1951-02-05 | 1952-12-09 | 0 | Details |
| US2620981A | Converting device | Expired / Lapsed | 1950-08-30 | 1952-12-09 | 0 | Details |
| US2615330A | Weight and balance indicator | Expired / Lapsed | 1945-11-13 | 1952-10-28 | 0 | Details |
| US2585350A | Pressure measuring device | Expired / Lapsed | 1947-06-24 | 1952-02-12 | 0 | Details |
| US2566623A | Hydraulic fluid composition | Expired / Lapsed | 1948-04-06 | 1951-09-04 | 2 | Details |
| US2545257A | Electronic control device | Expired / Lapsed | 1948-04-26 | 1951-03-13 | 0 | Details |
| US2524012A | Power boosted master brake cylinder in which booster fluid … | Expired / Lapsed | 1946-12-06 | 1950-09-26 | 0 | Details |
| US2518851A | Grommet | Expired / Lapsed | 1945-05-22 | 1950-08-15 | 0 | Details |
| US2507036A | Vehicle windshield | Expired / Lapsed | 1948-08-23 | 1950-05-09 | 0 | Details |
| US2481357A | Seal | Expired / Lapsed | 1945-10-31 | 1949-09-06 | 0 | Details |
| US2481371A | High-temperature strain gauge and method of making same | Expired / Lapsed | 1945-07-25 | 1949-09-06 | 0 | Details |
| US2466980A | Missile ejector for aircraft | Expired / Lapsed | 1947-06-02 | 1949-04-12 | 0 | Details |
| US2457616A | Metal foil type strain gauge and method of making same | Expired / Lapsed | 1946-07-16 | 1948-12-28 | 0 | Details |
| US2448847A | Control cable for aircraft | Expired / Lapsed | 1944-05-09 | 1948-09-07 | 0 | Details |
| US2432949A | Rivet and method of applying same | Expired / Lapsed | 1945-04-21 | 1947-12-16 | 0 | Details |
| US2427463A | Apparatus for making computations electrically | Expired / Lapsed | 1943-05-10 | 1947-09-16 | 0 | Details |
| US2422325A | Method of making patterns and forging dies | Expired / Lapsed | 1943-07-31 | 1947-06-17 | 0 | Details |
| US2420148A | Pressure indicator | Expired / Lapsed | 1943-11-08 | 1947-05-06 | 0 | Details |
| US2412585A | Sighting device | Expired / Lapsed | 1943-01-12 | 1946-12-17 | 0 | Details |
| US2407258A | Control for pressure cabins | Expired / Lapsed | 1942-06-06 | 1946-09-10 | 0 | Details |
| US2407257A | Regulating means for pressure cabins | Expired / Lapsed | 1942-02-07 | 1946-09-10 | 0 | Details |
| US2395671A | Control means for airfoils | Expired / Lapsed | 1940-09-26 | 1946-02-26 | 0 | Details |
| US2386839A | Bomb displacing gear | Expired / Lapsed | 1942-12-01 | 1945-10-16 | 0 | Details |
| US2384036A | Torpedo director | Expired / Lapsed | 1942-12-23 | 1945-09-04 | 0 | Details |
| US2372516A | Machine for forming material | Expired / Lapsed | 1942-09-07 | 1945-03-27 | 0 | Details |
| US2366382A | Control surface boost device and gust dampener | Expired / Lapsed | 1939-03-28 | 1945-01-02 | 0 | Details |
| US2354474A | Turnbuckle | Expired / Lapsed | 1942-09-14 | 1944-07-25 | 0 | Details |
| US2340589A | Lock nut | Expired / Lapsed | 1942-11-25 | 1944-02-01 | 0 | Details |
| US2322455A | Gunnery correction device | Expired / Lapsed | 1940-10-15 | 1943-06-22 | 0 | Details |
| US2303058A | Contour forming machine | Expired / Lapsed | 1940-03-11 | 1942-11-24 | 0 | Details |
| US2300722A | Hydraulic pressure fluid accumulator | Expired / Lapsed | 1939-12-09 | 1942-11-03 | 0 | Details |
| US2292916A | Hydraulic remote control system | Expired / Lapsed | 1939-05-16 | 1942-08-11 | 0 | Details |
| US2274091A | Bucking tool | Expired / Lapsed | 1938-04-23 | 1942-02-24 | 0 | Details |
| US2257267A | Percussive tool | Expired / Lapsed | 1938-05-06 | 1941-09-30 | 0 | Details |
| US2228779A | Sealed joint | Expired / Lapsed | 1939-01-03 | 1941-01-14 | 0 | Details |