Decca Record Co Ltd
Decca RecoActive Patents
0
Total Holdings
16
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US3041476A | Registers for binary digital information | Expired / Lapsed | 1959-04-22 | 1962-06-26 | 0 | Details |
| US3041604A | Corner reflector formed of taut flat reflecting elements wi… | Expired / Lapsed | 1957-08-15 | 1962-06-26 | 0 | Details |
| US2965899A | Directional radio antennae | Expired / Lapsed | 1956-08-06 | 1960-12-20 | 0 | Details |
| US2952017A | Waveguide type radar apparatus having polarization converter | Expired / Lapsed | 1957-06-17 | 1960-09-06 | 0 | Details |
| US2945223A | Radar displays | Expired / Lapsed | 1956-09-10 | 1960-07-12 | 0 | Details |
| US2894220A | Radar apparatus | Expired / Lapsed | 1956-03-26 | 1959-07-07 | 0 | Details |
| US2838753A | Radio range-indicating systems | Expired / Lapsed | 1951-08-27 | 1958-06-10 | 0 | Details |
| US2834955A | Radar systems | Expired / Lapsed | 1952-09-22 | 1958-05-13 | 0 | Details |
| US2769977A | Position indicating apparatus for use with radio navigation… | Expired / Lapsed | 1950-02-27 | 1956-11-06 | 0 | Details |
| US2598290A | Area identification system | Expired / Lapsed | 1945-08-27 | 1952-05-27 | 0 | Details |
| US2549923A | Vacuum tube oscillator | Expired / Lapsed | 1945-08-27 | 1951-04-24 | 0 | Details |
| US2531918A | Radio direction indicating device | Expired / Lapsed | 1947-01-20 | 1950-11-28 | 0 | Details |
| US2500809A | Automatic radio transmitting apparatus | Expired / Lapsed | 1948-02-19 | 1950-03-14 | 0 | Details |
| US2500200A | Multiple channel radio-frequency receiver | Expired / Lapsed | 1945-08-27 | 1950-03-14 | 0 | Details |
| US2449174A | Antenna supply phase and amplitude control | Expired / Lapsed | 1942-04-13 | 1948-09-14 | 0 | Details |
| US2430244A | Radio beacon system | Expired / Lapsed | 1946-10-07 | 1947-11-04 | 0 | Details |