BELMONT RADIO Corp
BELMONT RAActive Patents
0
Total Holdings
17
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2578970A | Three-dimensional display | Expired / Lapsed | 1949-05-21 | 1951-12-18 | 0 | Details |
| US2546591A | High-voltage power supply | Expired / Lapsed | 1947-11-12 | 1951-03-27 | 0 | Details |
| US2516972A | Video signal generator | Expired / Lapsed | 1947-11-12 | 1950-08-01 | 0 | Details |
| US2499573A | Signal-seeking tuner | Expired / Lapsed | 1945-11-05 | 1950-03-07 | 0 | Details |
| US2489867A | Method for making electrical coils | Expired / Lapsed | 1946-06-13 | 1949-11-29 | 0 | Details |
| US2463876A | Cathode-temperature control system | Expired / Lapsed | 1945-04-28 | 1949-03-08 | 0 | Details |
| US2438371A | Disengageable electrical circuit connector | Expired / Lapsed | 1944-07-21 | 1948-03-23 | 0 | Details |
| US2410523A | Phase-responsive system | Expired / Lapsed | 1945-04-21 | 1946-11-05 | 0 | Details |
| US2404401A | Signal receiving and translating apparatus | Expired / Lapsed | 1944-01-20 | 1946-07-23 | 0 | Details |
| US2390489A | High frequency attenuating device | Expired / Lapsed | 1943-06-21 | 1945-12-11 | 0 | Details |
| US2342691A | Control apparatus | Expired / Lapsed | 1941-02-10 | 1944-02-29 | 0 | Details |
| US2334670A | Radio amplifying circuit | Expired / Lapsed | 1940-12-13 | 1943-11-16 | 0 | Details |
| US2288098A | Control device for controllable apparatus | Expired / Lapsed | 1938-12-12 | 1942-06-30 | 0 | Details |
| US2275827A | Electric motor | Expired / Lapsed | 1940-07-02 | 1942-03-10 | 0 | Details |
| US2196147A | Coil system | Expired / Lapsed | 1937-01-11 | 1940-04-02 | 0 | Details |
| US2154406A | Supporting structure for radio indicating and control appar… | Expired / Lapsed | 1937-11-30 | 1939-04-11 | 0 | Details |
| US2130153A | Tuning device for radio receivers | Expired / Lapsed | 1937-10-20 | 1938-09-13 | 0 | Details |