Heil Co
Heil CoActive Patents
0
Total Holdings
12
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US3192946A | Breather check valves | Expired / Lapsed | 1963-04-15 | 1965-07-06 | 2 | Details |
| US2600633A | Constant volume variable speed driven vane pump | Expired / Lapsed | 1949-02-05 | 1952-06-17 | 0 | Details |
| US2600632A | Variable capacity vane-type rotary pump including automatic… | Expired / Lapsed | 1945-11-14 | 1952-06-17 | 0 | Details |
| US2368131A | Submersible deep well pump | Expired / Lapsed | 1943-12-27 | 1945-01-30 | 0 | Details |
| US2321377A | Hydraulic steering gear | Expired / Lapsed | 1940-08-01 | 1943-06-08 | 0 | Details |
| US2252763A | Scraper | Expired / Lapsed | 1940-04-18 | 1941-08-19 | 0 | Details |
| US2237345A | Receptacle transfer mechanism | Expired / Lapsed | 1939-06-26 | 1941-04-08 | 0 | Details |
| US2237377A | Emergency valve | Expired / Lapsed | 1939-01-06 | 1941-04-08 | 0 | Details |
| US2113047A | Rotary drier | Expired / Lapsed | 1936-11-16 | 1938-04-05 | 0 | Details |
| US2112466A | Grader control mechanism | Expired / Lapsed | 1935-11-16 | 1938-03-29 | 0 | Details |
| US2064022A | Trailbuilder | Expired / Lapsed | 1935-10-26 | 1936-12-15 | 0 | Details |
| US1913633A | Pump construction | Expired / Lapsed | 1929-04-27 | 1933-06-13 | 0 | Details |