General Motors Research Corp
General MoActive Patents
0
Total Holdings
7
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US1903077A | Method of uniting dissimilar metals | Expired / Lapsed | 1930-12-22 | 1933-03-28 | 0 | Details |
| US1861021A | Engine indicator and spark plug | Expired / Lapsed | 1929-01-24 | 1932-05-31 | 0 | Details |
| US1815619A | Control mechanism for brake booster cylinders | Expired / Lapsed | 1927-08-06 | 1931-07-21 | 0 | Details |
| US1802848A | Fuel system | Expired / Lapsed | 1926-06-05 | 1931-04-28 | 0 | Details |
| US1721808A | Heat-exchange apparatus | Expired / Lapsed | 1921-11-09 | 1929-07-23 | 0 | Details |
| US1679973A | Engine cylinder | Expired / Lapsed | 1922-12-13 | 1928-08-07 | 0 | Details |
| US1640742A | Pump | Expired / Lapsed | 1924-05-21 | 1927-08-30 | 0 | Details |