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Farnsworth Television and Radio Corp

Farnsworth
Active Patents
0
Total Holdings
23

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2429755A Video signal modulator Expired / Lapsed 1944-10-14 1947-10-28 0 Details
US2427204A Frequency multiplier Expired / Lapsed 1944-07-14 1947-09-09 0 Details
US2425956A Target seeking device with phototube multiplier Expired / Lapsed 1944-01-27 1947-08-19 0 Details
US2424349A Noise limiter and automatic volume control for television r… Expired / Lapsed 1943-02-15 1947-07-22 0 Details
US2412086A Image dissector tube Expired / Lapsed 1944-08-26 1946-12-03 0 Details
US2412092A Electronic timer Expired / Lapsed 1943-04-09 1946-12-03 0 Details
US2389992A Automatic frequency control apparatus Expired / Lapsed 1943-04-15 1945-11-27 0 Details
US2389979A Color television system Expired / Lapsed 1942-04-14 1945-11-27 0 Details
US2387685A Voltage generator Expired / Lapsed 1943-02-15 1945-10-23 0 Details
US2377500A Voltage regulator Expired / Lapsed 1943-03-18 1945-06-05 0 Details
US2352488A Video signal control system Expired / Lapsed 1942-09-19 1944-06-27 0 Details
US2350331A Communication system Expired / Lapsed 1941-10-25 1944-06-06 0 Details
US2345668A Impulse generator Expired / Lapsed 1942-03-14 1944-04-04 0 Details
US2329877A Demodulation system Expired / Lapsed 1941-09-29 1943-09-21 0 Details
US2323513A Continuous projector Expired / Lapsed 1940-08-14 1943-07-06 0 Details
US2311981A Electron control device Expired / Lapsed 1940-07-25 1943-02-23 0 Details
US2301522A Automatic black level control Expired / Lapsed 1941-07-23 1942-11-10 0 Details
US2290377A Anode modulated tube Expired / Lapsed 1940-04-01 1942-07-21 0 Details
US2226436A System of picture transmission Expired / Lapsed 1932-08-26 1940-12-24 0 Details
US2219120A Facsimile system Expired / Lapsed 1935-03-27 1940-10-22 0 Details
US2203048A Shielded anode electron multiplier Expired / Lapsed 1938-06-13 1940-06-04 0 Details
US2174490A Telephoto system Expired / Lapsed 1935-03-27 1939-09-26 0 Details
US2159521A Absorption oscillator Expired / Lapsed 1936-03-09 1939-05-23 0 Details