American Engineering Co Ltd
American EActive Patents
0
Total Holdings
13
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2250539A | Hydraulic control device | Expired / Lapsed | 1938-03-15 | 1941-07-29 | 0 | Details |
| US2149143A | Pump or motor | Expired / Lapsed | 1936-10-31 | 1939-02-28 | 0 | Details |
| US2145547A | Hydraulic control mechanism | Expired / Lapsed | 1935-03-26 | 1939-01-31 | 0 | Details |
| US2089367A | Refrigeration system | Expired / Lapsed | 1935-03-30 | 1937-08-10 | 0 | Details |
| US2053863A | Stoker furnace | Expired / Lapsed | 1935-01-16 | 1936-09-08 | 0 | Details |
| US2033035A | Mooring device | Expired / Lapsed | 1931-12-22 | 1936-03-03 | 0 | Details |
| US2029378A | Steering mechanism | Expired / Lapsed | 1933-09-27 | 1936-02-04 | 0 | Details |
| US2003423A | Furnace grate structure | Expired / Lapsed | 1931-07-28 | 1935-06-04 | 0 | Details |
| US1955922A | Automatic change-over system for hydraulic apparatus | Expired / Lapsed | 1931-03-20 | 1934-04-24 | 0 | Details |
| US1924124A | Pump | Expired / Lapsed | 1931-05-01 | 1933-08-29 | 0 | Details |
| US1717291A | Balanced-lever mechanism for automatic fluid-control systems | Expired / Lapsed | 1928-03-23 | 1929-06-11 | 0 | Details |
| US1611963A | Safety drive | Expired / Lapsed | 1923-08-28 | 1926-12-28 | 0 | Details |
| US1441097A | Stoker mechanism | Expired / Lapsed | 1919-07-02 | 1923-01-02 | 0 | Details |