Automatic Electric Laboratories Inc
AutomaticActive Patents
0
Total Holdings
180
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| GB583497A | Improvements in frequency changers | Expired / Lapsed | 1944-05-06 | — | 0 | Details |
| US3679970A | Selection matrix including a diode test circuit | Expired / Lapsed | 1970-04-22 | 1972-07-25 | 3 | Details |
| US3560663A | Traffic control for modifying the routing plan in a network… | Expired / Lapsed | 1969-01-30 | 1971-02-02 | 30 | Details |
| US3536902A | Sequence step check circuit | Expired / Lapsed | 1969-04-15 | 1970-10-27 | 0 | Details |
| US3524935A | Data transmission subset with mode indicating and selection… | Expired / Lapsed | 1967-12-19 | 1970-08-18 | 0 | Details |
| US3517129A | Data transmission subset | Expired / Lapsed | 1967-09-25 | 1970-06-23 | 0 | Details |
| US3515991A | High-speed correlative digital transmission system with ort… | Expired / Lapsed | 1966-10-31 | 1970-06-02 | 0 | Details |
| US3484561A | Apartment telephone-intercom and door release system | Expired / Lapsed | 1966-07-11 | 1969-12-16 | 0 | Details |
| US3472974A | Pushbutton switch activated by a slide with a plurality of … | Expired / Lapsed | 1967-09-25 | 1969-10-14 | 0 | Details |
| US3466572A | Apparatus for regulating signals in response to their total… | Expired / Lapsed | 1965-10-14 | 1969-09-09 | 0 | Details |
| US3452297A | Nonlinear pcm encoder having few analog-to-quantized signal… | Expired / Lapsed | 1966-03-14 | 1969-06-24 | 0 | Details |
| US3413423A | Special purpose telephone subset | Expired / Lapsed | 1965-06-30 | 1968-11-26 | 0 | Details |
| US3392238A | Am phase-modulated polybinary data transmission system | Expired / Lapsed | 1964-02-13 | 1968-07-09 | 0 | Details |
| US3377538A | Regulated converter | Expired / Lapsed | 1966-03-07 | 1968-04-09 | 2 | Details |
| US3371282A | Plural, modified ring counters wherein each succeeding coun… | Expired / Lapsed | 1965-10-05 | 1968-02-27 | 0 | Details |
| US3337863A | Polybinary techniques | Expired / Lapsed | 1964-01-17 | 1967-08-22 | 2 | Details |
| US3333245A | Time division signaling arrangement | Expired / Lapsed | 1963-07-15 | 1967-07-25 | 1 | Details |
| US3328534A | Communication switching system | Expired / Lapsed | 1965-04-23 | 1967-06-27 | 2 | Details |
| US3308244A | Crosspoint switching array having marker pulse measuring me… | Expired / Lapsed | 1964-03-18 | 1967-03-07 | 2 | Details |
| US3303288A | Register-sender arrangement | Expired / Lapsed | 1963-11-26 | 1967-02-07 | 2 | Details |
| US3299220A | Programmed diagnostic equipment for a communication switchi… | Expired / Lapsed | 1963-05-08 | 1967-01-17 | 2 | Details |
| US3288932A | Voice-data substation apparatus actuated by tone from centr… | Expired / Lapsed | 1963-04-24 | 1966-11-29 | 2 | Details |
| US3263185A | Synchronous frequency modulation of digital data | Expired / Lapsed | 1964-02-06 | 1966-07-26 | 2 | Details |
| US3247323A | Gating circuit for a time division multiplex switching syst… | Expired / Lapsed | 1961-10-11 | 1966-04-19 | 1 | Details |
| US3238299A | High-speed data transmission system | Expired / Lapsed | 1962-07-02 | 1966-03-01 | 2 | Details |
| US3227819A | Push button control apparatus | Expired / Lapsed | 1963-10-10 | 1966-01-04 | 2 | Details |
| US3226478A | Automatic telephone answering and message recording system | Expired / Lapsed | 1960-12-16 | 1965-12-28 | 2 | Details |
| US3218529A | Plural motor tape deck transport including tensioning, dyna… | Expired / Lapsed | 1962-10-09 | 1965-11-16 | 2 | Details |
| US3218395A | Electronic signaling arrangement | Expired / Lapsed | 1962-09-17 | 1965-11-16 | 2 | Details |
| US3217107A | Line concentrator and signaling system therefor | Expired / Lapsed | 1961-02-27 | 1965-11-09 | 2 | Details |
| US3209807A | Positive retention captive screw | Expired / Lapsed | 1963-11-12 | 1965-10-05 | 0 | Details |
| US3210484A | Push button device | Expired / Lapsed | 1962-04-20 | 1965-10-05 | 1 | Details |
| US3197566A | Call rerouting arrangement | Expired / Lapsed | 1962-02-13 | 1965-07-27 | 2 | Details |
| US3193623A | Wireless extension telephone | Expired / Lapsed | 1961-08-07 | 1965-07-06 | 0 | Details |
| US3173994A | Communication switching system common control | Expired / Lapsed | 1962-10-19 | 1965-03-16 | 4 | Details |
| US3136864A | Loudspeaking telephone with electronic voice switching | Expired / Lapsed | 1959-10-05 | 1964-06-09 | 1 | Details |
| US3136856A | Remote function selector for automatic telephone answering … | Expired / Lapsed | 1958-08-06 | 1964-06-09 | 1 | Details |
| US3133153A | Special service toll telephone system | Expired / Lapsed | 1960-10-07 | 1964-05-12 | 2 | Details |
| US3133154A | Electronic switching system | Expired / Lapsed | 1959-10-12 | 1964-05-12 | 1 | Details |
| US3109990A | Ring counter with unique gating for self correction | Expired / Lapsed | 1961-09-07 | 1963-11-05 | 2 | Details |
| US3065309A | Electronic tone generator | Expired / Lapsed | 1960-03-07 | 1962-11-20 | 0 | Details |
| US3060268A | System for transmitting special signals for pulse type tele… | Expired / Lapsed | 1959-05-14 | 1962-10-23 | 0 | Details |
| US3055982A | Communication switching network | Expired / Lapsed | 1961-01-30 | 1962-09-25 | 0 | Details |
| US3050680A | Testing apparatus | Expired / Lapsed | 1959-11-02 | 1962-08-21 | 0 | Details |
| US3046348A | Memory for use in electronic telephone system | Expired / Lapsed | 1959-10-12 | 1962-07-24 | 0 | Details |
| US3041402A | Automatic mobile telephone system | Expired / Lapsed | 1958-07-03 | 1962-06-26 | 0 | Details |
| US3041400A | Electronic switching system | Expired / Lapsed | 1958-01-06 | 1962-06-26 | 0 | Details |
| US3033934A | Trunk routing | Expired / Lapsed | 1959-02-26 | 1962-05-08 | 0 | Details |
| US3015699A | Electronic switching system | Expired / Lapsed | 1959-09-30 | 1962-01-02 | 0 | Details |
| US3014989A | Incoming telephone call pabx restrictive service | Expired / Lapsed | 1959-06-10 | 1961-12-26 | 0 | Details |
| US3015092A | Plate memory and magnetic material | Expired / Lapsed | 1959-03-30 | 1961-12-26 | 0 | Details |
| US3003034A | Tone controlled paystation | Expired / Lapsed | 1956-02-07 | 1961-10-03 | 0 | Details |
| US2987615A | Mobile selector for common carrier radio telephone service | Expired / Lapsed | 1957-12-23 | 1961-06-06 | 0 | Details |
| US2987250A | Electronic totalizer | Expired / Lapsed | 1954-04-23 | 1961-06-06 | 0 | Details |
| US2946844A | Automatic telegraph switching system | Expired / Lapsed | 1956-11-29 | 1960-07-26 | 0 | Details |
| US2946843A | Automatic telegraph switching system with multiple call pro… | Expired / Lapsed | 1953-10-21 | 1960-07-26 | 0 | Details |
| US2773127A | Calling line identification apparatus | Expired / Lapsed | 1955-02-11 | 1956-12-04 | 0 | Details |
| US2772390A | Volume limiter device | Expired / Lapsed | 1953-03-27 | 1956-11-27 | 0 | Details |
| US2769865A | Electronic telephone systems | Expired / Lapsed | 1951-02-20 | 1956-11-06 | 0 | Details |
| US2765426A | Cold cathode gas tube counting chain | Expired / Lapsed | 1953-02-04 | 1956-10-02 | 0 | Details |
| US2751436A | Carrier current telephone systems | Expired / Lapsed | 1952-03-27 | 1956-06-19 | 0 | Details |
| US2748197A | Telephone systems | Expired / Lapsed | 1952-01-14 | 1956-05-29 | 0 | Details |
| US2737578A | Control terminal for mobile radio telephone systems | Expired / Lapsed | 1951-04-25 | 1956-03-06 | 0 | Details |
| US2729705A | Telephone system | Expired / Lapsed | 1951-04-27 | 1956-01-03 | 0 | Details |
| US2729771A | Electric relay systems | Expired / Lapsed | 1949-01-28 | 1956-01-03 | 0 | Details |
| US2724741A | Local and remote exchange timed metering | Expired / Lapsed | 1950-06-21 | 1955-11-22 | 0 | Details |
| US2717986A | Remote control systems | Expired / Lapsed | 1952-09-17 | 1955-09-13 | 0 | Details |
| US2710896A | Rotary stepping switches | Expired / Lapsed | 1951-09-29 | 1955-06-14 | 0 | Details |
| US2708690A | Party line telephone systems | Expired / Lapsed | 1950-08-05 | 1955-05-17 | 0 | Details |
| US2703338A | Semiautomatic message forwarding unit | Expired / Lapsed | 1953-10-22 | 1955-03-01 | 0 | Details |
| US2680155A | Telephone system using magnetic recorder | Expired / Lapsed | 1949-10-26 | 1954-06-01 | 0 | Details |
| US2677079A | Concentric translating device | Expired / Lapsed | 1949-06-11 | 1954-04-27 | 0 | Details |
| US2674734A | Electronic ringing frequency generator | Expired / Lapsed | 1950-07-20 | 1954-04-06 | 0 | Details |
| US2673252A | Magnetic cradle switch | Expired / Lapsed | 1949-09-28 | 1954-03-23 | 0 | Details |
| US2672513A | Telephone system | Expired / Lapsed | 1950-07-29 | 1954-03-16 | 0 | Details |
| US2659650A | Graphic recorder | Expired / Lapsed | 1952-08-19 | 1953-11-17 | 0 | Details |
| US2647250A | All-relay selective calling system | Expired / Lapsed | 1951-11-30 | 1953-07-28 | 0 | Details |
| US2639331A | Automatic telephone system | Expired / Lapsed | 1947-03-11 | 1953-05-19 | 0 | Details |
| US2635147A | Telephone selector switch utilizing odd-even relay | Expired / Lapsed | 1948-10-25 | 1953-04-14 | 0 | Details |
| US2633535A | Multivibrator circuits | Expired / Lapsed | 1950-10-06 | 1953-03-31 | 0 | Details |
| US2629092A | Multichannel mobile telephone system | Expired / Lapsed | 1948-12-31 | 1953-02-17 | 0 | Details |
| US2623164A | Single channel, single frequency, mobile radio telephone sy… | Expired / Lapsed | 1948-11-01 | 1952-12-23 | 0 | Details |
| US2617872A | Frequency signaling system | Expired / Lapsed | 1949-04-02 | 1952-11-11 | 0 | Details |
| US2616074A | Apparatus for utilizing the hall effect | Expired / Lapsed | 1950-04-10 | 1952-10-28 | 0 | Details |
| US2600648A | Relay registering system | Expired / Lapsed | 1949-11-25 | 1952-06-17 | 0 | Details |
| US2591937A | Selective calling system | Expired / Lapsed | 1947-05-01 | 1952-04-08 | 0 | Details |
| US2590672A | Carrier system having variable power level for supervisory … | Expired / Lapsed | 1950-06-29 | 1952-03-25 | 0 | Details |
| US2575782A | Control terminal for mobile radio telephone | Expired / Lapsed | 1948-12-18 | 1951-11-20 | 0 | Details |
| US2564062A | Selective signaling system employing condenser charge | Expired / Lapsed | 1949-11-25 | 1951-08-14 | 0 | Details |
| US2562594A | Line and station detecting apparatus | Expired / Lapsed | 1949-05-11 | 1951-07-31 | 0 | Details |
| US2559165A | Carrier current telephone system | Expired / Lapsed | 1947-02-14 | 1951-07-03 | 0 | Details |
| US2552781A | Electronic counting arrangement | Expired / Lapsed | 1946-08-31 | 1951-05-15 | 0 | Details |
| US2552760A | Binary calculator | Expired / Lapsed | 1946-04-12 | 1951-05-15 | 0 | Details |
| US2550820A | Automatic line testing apparatus, including means for indic… | Expired / Lapsed | 1947-10-03 | 1951-05-01 | 0 | Details |
| US2550819A | Cordless key control testboard for telephone systems | Expired / Lapsed | 1947-09-17 | 1951-05-01 | 0 | Details |
| US2549688A | Magneto party-line adapter | Expired / Lapsed | 1947-10-18 | 1951-04-17 | 0 | Details |
| US2543983A | Calendar clock mechanism | Expired / Lapsed | 1947-11-28 | 1951-03-06 | 0 | Details |
| US2542921A | Signal operated control for twochannel transmission systems | Expired / Lapsed | 1945-07-02 | 1951-02-20 | 0 | Details |
| US2541398A | Electromagnetic relay contact | Expired / Lapsed | 1945-10-29 | 1951-02-13 | 0 | Details |
| US2535511A | Telephone system | Expired / Lapsed | 1948-09-29 | 1950-12-26 | 0 | Details |
| US2535509A | Party identification in automatic telephony | Expired / Lapsed | 1946-11-22 | 1950-12-26 | 0 | Details |
| US2533662A | Automatic trunk selecting system for radio telephone statio… | Expired / Lapsed | 1947-04-11 | 1950-12-12 | 0 | Details |
| US2533677A | Electronic device for timing toll calls and for signaling b… | Expired / Lapsed | 1945-09-15 | 1950-12-12 | 0 | Details |
| US2530815A | Mobile radiotelephone system having a single channel and a … | Expired / Lapsed | 1949-02-02 | 1950-11-21 | 0 | Details |
| US2530076A | Time announcing system | Expired / Lapsed | 1949-01-28 | 1950-11-14 | 0 | Details |
| US2530075A | Signal unit for telephone conversation recorders | Expired / Lapsed | 1948-11-12 | 1950-11-14 | 0 | Details |
| US2522705A | Relay timing interrupter circuit | Expired / Lapsed | 1947-09-12 | 1950-09-19 | 0 | Details |
| US2515783A | Controlling circuits for rotary connector switches | Expired / Lapsed | 1947-07-22 | 1950-07-18 | 0 | Details |
| US2501546A | Automatic private branch exchange telephone system having t… | Expired / Lapsed | 1947-09-12 | 1950-03-21 | 0 | Details |
| US2498899A | Electrical signaling system | Expired / Lapsed | 1945-08-27 | 1950-02-28 | 0 | Details |
| US2496902A | Private automatic telephone system of the passing call type | Expired / Lapsed | 1945-06-28 | 1950-02-07 | 0 | Details |
| US2494486A | Radio tuning control | Expired / Lapsed | 1946-05-09 | 1950-01-10 | 0 | Details |
| US2492435A | Electric motor control circuits | Expired / Lapsed | 1948-07-01 | 1949-12-27 | 0 | Details |
| US2491902A | Batteryless impulse transmitter | Expired / Lapsed | 1946-05-09 | 1949-12-20 | 0 | Details |
| US2486722A | Automatic toll-ticketing telephone system | Expired / Lapsed | 1939-06-12 | 1949-11-01 | 0 | Details |
| US2486198A | Airport lighting system | Expired / Lapsed | 1945-10-26 | 1949-10-25 | 0 | Details |
| US2486155A | Voltage regulating arrangement | Expired / Lapsed | 1944-05-27 | 1949-10-25 | 0 | Details |
| US2483214A | Telephone alarm call system | Expired / Lapsed | 1945-04-16 | 1949-09-27 | 0 | Details |
| US2481840A | Timer for switching from signaling device to the subscriber… | Expired / Lapsed | 1945-06-28 | 1949-09-13 | 0 | Details |
| US2477973A | Remote control system | Expired / Lapsed | 1944-08-21 | 1949-08-02 | 0 | Details |
| US2475675A | Radio switching system | Expired / Lapsed | 1946-05-27 | 1949-07-12 | 0 | Details |
| US2468553A | Voice operated control circuit | Expired / Lapsed | 1945-03-17 | 1949-04-26 | 0 | Details |
| US2468552A | Voice operated control circuit for two-way signal transmiss… | Expired / Lapsed | 1944-04-28 | 1949-04-26 | 0 | Details |
| US2467457A | Distributor switching apparatus | Expired / Lapsed | 1945-06-04 | 1949-04-19 | 0 | Details |
| US2463717A | Impulse sender | Expired / Lapsed | 1947-01-24 | 1949-03-08 | 0 | Details |
| US2458262A | Relay selector circuit arranged to simultaneously test a se… | Expired / Lapsed | 1946-01-30 | 1949-01-04 | 0 | Details |
| US2458283A | Impulse generator | Expired / Lapsed | 1944-10-23 | 1949-01-04 | 0 | Details |
| US2457046A | Telephone signaling apparatus | Expired / Lapsed | 1942-07-15 | 1948-12-21 | 0 | Details |
| US2446316A | Gun sighting and training apparatus | Expired / Lapsed | 1942-09-14 | 1948-08-03 | 0 | Details |
| US2442427A | Supervisory alarm system for telephone interrupters | Expired / Lapsed | 1946-04-03 | 1948-06-01 | 0 | Details |
| US2437118A | Automatic telephone system having rating independent of rou… | Expired / Lapsed | 1942-07-20 | 1948-03-02 | 0 | Details |
| US2432902A | Electric selective signaling or control system | Expired / Lapsed | 1943-08-25 | 1947-12-16 | 0 | Details |
| US2428520A | Transmission system | Expired / Lapsed | 1943-05-01 | 1947-10-07 | 0 | Details |
| US2424452A | Voice frequency and direct current impulse repeating system | Expired / Lapsed | 1944-12-08 | 1947-07-22 | 0 | Details |
| US2418609A | Telephone system | Expired / Lapsed | 1944-10-23 | 1947-04-08 | 0 | Details |
| US2412258A | Telephone or like system | Expired / Lapsed | 1943-12-08 | 1946-12-10 | 0 | Details |
| US2410899A | Microphone handle | Expired / Lapsed | 1944-05-25 | 1946-11-12 | 0 | Details |
| US2410520A | Telephone system | Expired / Lapsed | 1941-07-26 | 1946-11-05 | 0 | Details |
| US2397635A | Electromagnetic relay | Expired / Lapsed | 1943-02-26 | 1946-04-02 | 0 | Details |
| US2395168A | Signaling system | Expired / Lapsed | 1944-05-27 | 1946-02-19 | 0 | Details |
| US2395132A | Electrical signaling system | Expired / Lapsed | 1941-05-27 | 1946-02-19 | 0 | Details |
| US2393403A | Telephone traffic recording system | Expired / Lapsed | 1944-01-22 | 1946-01-22 | 0 | Details |
| US2393374A | Phonograph reproducing system | Expired / Lapsed | 1942-12-05 | 1946-01-22 | 0 | Details |
| US2391389A | Telephone system | Expired / Lapsed | 1944-08-04 | 1945-12-25 | 0 | Details |
| US2389275A | Telemetering arrangement | Expired / Lapsed | 1942-08-14 | 1945-11-20 | 0 | Details |
| US2385515A | Intercommunication system | Expired / Lapsed | 1944-03-25 | 1945-09-25 | 0 | Details |
| US2385720A | Telephone system | Expired / Lapsed | 1942-02-09 | 1945-09-25 | 0 | Details |
| US2384948A | Telephone switch or telephone contact | Expired / Lapsed | 1940-12-09 | 1945-09-18 | 0 | Details |
| US2385228A | Telephone system | Expired / Lapsed | 1940-08-26 | 1945-09-18 | 0 | Details |
| US2383312A | Communication system | Expired / Lapsed | 1943-07-21 | 1945-08-21 | 0 | Details |
| US2381763A | Inductive device | Expired / Lapsed | 1942-04-25 | 1945-08-07 | 0 | Details |
| US2377596A | Battery charging system | Expired / Lapsed | 1943-01-02 | 1945-06-05 | 0 | Details |
| US2377583A | Stepping mechanism | Expired / Lapsed | 1942-11-27 | 1945-06-05 | 0 | Details |
| US2376352A | Telephone or like system | Expired / Lapsed | 1943-05-31 | 1945-05-22 | 0 | Details |
| US2373247A | Electrical timing arrangement | Expired / Lapsed | 1943-10-21 | 1945-04-10 | 0 | Details |
| US2369460A | Transmission system | Expired / Lapsed | 1943-04-19 | 1945-02-13 | 0 | Details |
| US2369331A | Electromagnetic relay | Expired / Lapsed | 1941-06-30 | 1945-02-13 | 0 | Details |
| US2365187A | Transmission system | Expired / Lapsed | 1941-11-14 | 1944-12-19 | 0 | Details |
| US2364685A | Telephone system | Expired / Lapsed | 1943-02-06 | 1944-12-12 | 0 | Details |
| US2361314A | Telephone system | Expired / Lapsed | 1943-04-01 | 1944-10-24 | 0 | Details |
| US2360296A | Signaling system | Expired / Lapsed | 1942-09-11 | 1944-10-10 | 0 | Details |
| US2359967A | Timing arrangement | Expired / Lapsed | 1941-12-29 | 1944-10-10 | 0 | Details |
| US2355352A | Indicating system | Expired / Lapsed | 1942-04-30 | 1944-08-08 | 0 | Details |
| US2352492A | Telephone system | Expired / Lapsed | 1941-12-20 | 1944-06-27 | 0 | Details |
| US2352107A | Telephone system | Expired / Lapsed | 1942-09-14 | 1944-06-20 | 0 | Details |
| US2345136A | Signaling system | Expired / Lapsed | 1941-04-26 | 1944-03-28 | 0 | Details |
| US2344231A | Remote control and supervisory system | Expired / Lapsed | 1941-02-07 | 1944-03-14 | 0 | Details |
| US2343411A | Current supply system | Expired / Lapsed | 1942-03-02 | 1944-03-07 | 0 | Details |
| US2341746A | Telephone system | Expired / Lapsed | 1942-06-12 | 1944-02-15 | 0 | Details |
| US2340554A | Telephone system | Expired / Lapsed | 1942-04-30 | 1944-02-01 | 0 | Details |
| US2339438A | Telephone system | Expired / Lapsed | 1941-12-04 | 1944-01-18 | 0 | Details |
| US2336064A | Remote control and supervisory system | Expired / Lapsed | 1941-02-07 | 1943-12-07 | 0 | Details |
| US2335512A | Telephone ringing apparatus | Expired / Lapsed | 1941-07-03 | 1943-11-30 | 0 | Details |
| US2335524A | Signaling system | Expired / Lapsed | 1941-04-26 | 1943-11-30 | 0 | Details |
| US2333472A | Telephone system | Expired / Lapsed | 1942-02-16 | 1943-11-02 | 0 | Details |
| US2333039A | Telephone system | Expired / Lapsed | 1941-03-24 | 1943-10-26 | 0 | Details |
| US2330355A | Indicating system | Expired / Lapsed | 1941-04-26 | 1943-09-28 | 0 | Details |
| US2330357A | Signaling system | Expired / Lapsed | 1941-04-26 | 1943-09-28 | 0 | Details |
| US2330356A | Indicating system | Expired / Lapsed | 1941-04-26 | 1943-09-28 | 0 | Details |
| US2329234A | Automatic switching system | Expired / Lapsed | 1941-02-10 | 1943-09-14 | 0 | Details |