Daven Co
Daven CoActive Patents
0
Total Holdings
6
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2980770A | Miniature switch | Expired / Lapsed | 1958-12-18 | 1961-04-18 | 0 | Details |
| US2678985A | Electrical devices such as attenuators, potentiometers, rhe… | Expired / Lapsed | 1951-11-15 | 1954-05-18 | 0 | Details |
| US2489626A | Rotary electric switch | Expired / Lapsed | 1947-01-30 | 1949-11-29 | 0 | Details |
| US2476121A | Current transformer | Expired / Lapsed | 1946-09-11 | 1949-07-12 | 0 | Details |
| US2449019A | Attenuator | Expired / Lapsed | 1944-11-11 | 1948-09-07 | 0 | Details |
| US2438431A | Attenuator | Expired / Lapsed | 1945-04-25 | 1948-03-23 | 0 | Details |