PREMIER CRYSTAL LAB Inc
PREMIER CRActive Patents
0
Total Holdings
7
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2529443A | Multiband superheterodyne radio receiver having a push-butt… | Expired / Lapsed | 1945-10-22 | 1950-11-07 | 0 | Details |
| US2501591A | Multiband superheterodyne radio receiver having a push-butt… | Expired / Lapsed | 1945-08-27 | 1950-03-21 | 0 | Details |
| US2496975A | Temperature responsive piezo-electric crystal oscillator | Expired / Lapsed | 1945-04-17 | 1950-02-07 | 0 | Details |
| US2470737A | Method and means of finishing piezoelectric crystals | Expired / Lapsed | 1944-08-29 | 1949-05-17 | 0 | Details |
| US2329321A | Piezoelectric device | Expired / Lapsed | 1942-09-17 | 1943-09-14 | 0 | Details |
| US2039267A | Electrical meter | Expired / Lapsed | 1934-03-13 | 1936-04-28 | 0 | Details |
| US1971310A | Measuring reactance | Expired / Lapsed | 1933-05-25 | 1934-08-21 | 0 | Details |