STC PLC
STC PLCActive Patents
0
Total Holdings
7
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2688656A | Means for checking recorded information | Expired / Lapsed | 1950-11-24 | 1954-09-07 | 0 | Details |
| US2557951A | Antenna system | Expired / Lapsed | 1945-06-19 | 1951-06-26 | 0 | Details |
| US2454772A | Pulse echo system for distance measuring | Expired / Lapsed | 1942-12-10 | 1948-11-30 | 0 | Details |
| US2444042A | Electrically operated calculating apparatus for converting … | Expired / Lapsed | 1943-07-12 | 1948-06-29 | 0 | Details |
| US2372162A | Cable forming apparatus | Expired / Lapsed | 1943-05-15 | 1945-03-20 | 0 | Details |
| US2369662A | Intelligence transmission system | Expired / Lapsed | 1943-06-05 | 1945-02-20 | 0 | Details |
| US2368663A | Broad band antenna | Expired / Lapsed | 1943-05-15 | 1945-02-06 | 0 | Details |