CONS ASHCROFT HANCOCK CO
CONS ASHCRActive Patents
0
Total Holdings
6
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2073838A | Pneumatic control system | Expired / Lapsed | 1935-04-26 | 1937-03-16 | 0 | Details |
| US2047403A | Fluid flow system | Expired / Lapsed | 1934-10-01 | 1936-07-14 | 0 | Details |
| US2044461A | Means for controlling heat exchange apparatus | Expired / Lapsed | 1934-07-20 | 1936-06-16 | 0 | Details |
| US1949150A | Safety valve | Expired / Lapsed | 1931-03-19 | 1934-02-27 | 0 | Details |
| US1925515A | Recording instrument | Expired / Lapsed | 1931-10-20 | 1933-09-05 | 0 | Details |
| US1737588A | Incased adjustable weight-loaded valve | Expired / Lapsed | 1925-12-10 | 1929-12-03 | 0 | Details |