Electric Controller and Manufacturing Co LLC
Electric CActive Patents
0
Total Holdings
10
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2721300A | Protective control system for electric motor | Expired / Lapsed | 1950-05-17 | 1955-10-18 | 0 | Details |
| US2719966A | Electronic annunciator | Expired / Lapsed | 1951-11-01 | 1955-10-04 | 0 | Details |
| US2641697A | Electronic limit control circuit | Expired / Lapsed | 1950-01-18 | 1953-06-09 | 0 | Details |
| US2467901A | Control system | Expired / Lapsed | 1944-01-01 | 1949-04-19 | 0 | Details |
| US2386149A | Electromagnetic control | Expired / Lapsed | 1943-08-09 | 1945-10-02 | 0 | Details |
| US2325454A | Hoist control system | Expired / Lapsed | 1941-08-25 | 1943-07-27 | 0 | Details |
| US2298188A | Motor control system | Expired / Lapsed | 1941-05-20 | 1942-10-06 | 0 | Details |
| US2233501A | Braking system for induction motors | Expired / Lapsed | 1939-09-29 | 1941-03-04 | 0 | Details |
| US2024019A | Electric weld controlling device | Expired / Lapsed | 1932-08-20 | 1935-12-10 | 0 | Details |
| US1364847A | Stopping apparatus for alternating-current motors | Expired / Lapsed | 1919-07-12 | 1921-01-04 | 0 | Details |