HAMMOND INSTR CO
HAMMOND INActive Patents
0
Total Holdings
14
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2588382A | Vehicle steering control apparatus | Expired / Lapsed | 1944-07-27 | 1952-03-11 | 0 | Details |
| US2577753A | Electrical musical instrument with tone sustaining means | Expired / Lapsed | 1949-08-22 | 1951-12-11 | 0 | Details |
| US2554329A | Remote-control apparatus | Expired / Lapsed | 1944-07-20 | 1951-05-22 | 0 | Details |
| US2541051A | Apparatus for automatic production of music | Expired / Lapsed | 1945-11-01 | 1951-02-13 | 0 | Details |
| US2439295A | Speed responsive apparatus | Expired / Lapsed | 1945-03-10 | 1948-04-06 | 0 | Details |
| US2439294A | Steering control apparatus | Expired / Lapsed | 1943-11-27 | 1948-04-06 | 0 | Details |
| US2429226A | Electrical musical instrument | Expired / Lapsed | 1942-09-14 | 1947-10-21 | 0 | Details |
| US2408930A | Frequency meter | Expired / Lapsed | 1943-06-14 | 1946-10-08 | 0 | Details |
| US2382413A | Electrical musical apparatus | Expired / Lapsed | 1943-05-10 | 1945-08-14 | 0 | Details |
| US2276390A | Electrical musical instrument | Expired / Lapsed | 1940-10-14 | 1942-03-17 | 0 | Details |
| US2260412A | Key action for musical instruments | Expired / Lapsed | 1939-02-16 | 1941-10-28 | 0 | Details |
| US2254284A | Electrical musical instrument | Expired / Lapsed | 1939-05-18 | 1941-09-02 | 0 | Details |
| US2248661A | Alternator | Expired / Lapsed | 1938-09-27 | 1941-07-08 | 0 | Details |
| US2173888A | Electronic musical instrument | Expired / Lapsed | 1938-03-28 | 1939-09-26 | 0 | Details |