Zenith Electronics LLC
Zenith EleActive Patents
0
Total Holdings
7
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US3319179A | Automatic frequency controlled signal generator | Expired / Lapsed | 1966-03-11 | 1967-05-09 | 2 | Details |
| US2561768A | Thermionic cathode activation | Expired / Lapsed | 1950-04-10 | 1951-07-24 | 0 | Details |
| US2540412A | Piezoelectric transducer and method for producing same | Expired / Lapsed | 1947-12-26 | 1951-02-06 | 0 | Details |
| US2538554A | Process of producing piezoelectric transducers | Expired / Lapsed | 1947-08-22 | 1951-01-16 | 2 | Details |
| US2455450A | Radio receiver noise suppression circuit | Expired / Lapsed | 1944-01-13 | 1948-12-07 | 0 | Details |
| US2444218A | Frequency-modulated radio-phonograph combination | Expired / Lapsed | 1941-08-11 | 1948-06-29 | 0 | Details |
| US2323880A | Wave amplitude limiting device | Expired / Lapsed | 1940-12-26 | 1943-07-06 | 0 | Details |