PUMP ENGINEERING SERVICE Corp
PUMP ENGINActive Patents
0
Total Holdings
10
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2291424A | Pump with by-pass valve | Expired / Lapsed | 1940-11-13 | 1942-07-28 | 0 | Details |
| US2291578A | Hydraulic equalizer | Expired / Lapsed | 1939-05-13 | 1942-07-28 | 0 | Details |
| US2281157A | Oil pump seal assembly | Expired / Lapsed | 1940-10-23 | 1942-04-28 | 0 | Details |
| US2277573A | Multiple distributor valve | Expired / Lapsed | 1940-04-08 | 1942-03-24 | 0 | Details |
| US2263091A | Fuel pump | Expired / Lapsed | 1938-03-18 | 1941-11-18 | 0 | Details |
| US2223994A | Check valve | Expired / Lapsed | 1938-03-12 | 1940-12-03 | 0 | Details |
| US2202913A | Gear pump | Expired / Lapsed | 1938-03-18 | 1940-06-04 | 0 | Details |
| US2202912A | Gear pump and relief valve | Expired / Lapsed | 1938-03-17 | 1940-06-04 | 0 | Details |
| US2196500A | Fuel pump | Expired / Lapsed | 1935-03-12 | 1940-04-09 | 0 | Details |
| US2189210A | Fuel pump | Expired / Lapsed | 1938-03-12 | 1940-02-06 | 0 | Details |