Patent Explorer
Browse, filter, and analyze 12 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US2335205A | Supporting means for radio coil units and the like | Philco Radio and Television Corp | Expired / Lapsed | 1941-10-16 | 1943-11-23 | 1961-10-16 | 0.0 yrs | 0 | |
| US2330902A | Detector and automatic volume control circuit for frequency-modulation receivers | Philco Radio and Television Corp | Expired / Lapsed | 1941-10-17 | 1943-10-05 | 1961-10-17 | 0.0 yrs | 0 | |
| US2312181A | Multiple tube socket structure | Philco Radio and Television Corp | Expired / Lapsed | 1941-11-13 | 1943-02-23 | 1961-11-13 | 0.0 yrs | 0 | |
| US2290084A | Degenerative feedback circuit | Philco Radio and Television Corp | Expired / Lapsed | 1937-07-24 | 1942-07-14 | 1957-07-24 | 0.0 yrs | 0 | |
| US2288554A | Synchronizing system and method | Philco Radio and Television Corp | Expired / Lapsed | 1940-05-24 | 1942-06-30 | 1960-05-24 | 0.0 yrs | 0 | |
| US2277000A | Synchronizing system | Philco Radio and Television Corp | Expired / Lapsed | 1940-09-17 | 1942-03-17 | 1960-09-17 | 0.0 yrs | 0 | |
| US2274586A | Cathode ray tube | Philco Radio and Television Corp | Expired / Lapsed | 1939-02-25 | 1942-02-24 | 1959-02-25 | 0.0 yrs | 0 | |
| US2240606A | Electron beam deflecting yoke | Philco Radio and Television Corp | Expired / Lapsed | 1939-10-21 | 1941-05-06 | 1959-10-21 | 0.0 yrs | 0 | |
| US2240420A | Electrical system | Philco Radio and Television Corp | Expired / Lapsed | 1939-05-11 | 1941-04-29 | 1959-05-11 | 0.0 yrs | 0 | |
| US2233317A | Amplifier for television system | Philco Radio and Television Corp | Expired / Lapsed | 1937-05-25 | 1941-02-25 | 1957-05-25 | 0.0 yrs | 0 | |
| US2230926A | Timing signal circuits | Philco Radio and Television Corp | Expired / Lapsed | 1939-04-13 | 1941-02-04 | 1959-04-13 | 0.0 yrs | 0 | |
| US2141343A | Electrical system | Philco Radio and Television Corp | Expired / Lapsed | 1935-06-07 | 1938-12-27 | 1955-06-07 | 0.0 yrs | 0 |