Imperial Brass Manufacturing Co
Imperial BActive Patents
0
Total Holdings
11
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2897835A | Vacuum breaker | Expired / Lapsed | 1956-02-29 | 1959-08-04 | 0 | Details |
| CA458408A | Coupling for high pressure tubing | Expired / Lapsed | — | 1949-07-26 | 0 | Details |
| US2405822A | Sealed flexible coupling | Expired / Lapsed | 1943-02-26 | 1946-08-13 | 0 | Details |
| US2298117A | Quick coupler for tubing | Expired / Lapsed | 1940-09-18 | 1942-10-06 | 0 | Details |
| US2212745A | Resilient coupling for tubing | Expired / Lapsed | 1938-01-26 | 1940-08-27 | 0 | Details |
| US2089851A | Mechanical refrigeration apparatus | Expired / Lapsed | 1934-06-04 | 1937-08-10 | 0 | Details |
| US2087049A | Plumbing system employing vacuum breakers | Expired / Lapsed | 1933-12-19 | 1937-07-13 | 0 | Details |
| US1927463A | Refacing tool for threaded members | Expired / Lapsed | 1929-07-26 | 1933-09-19 | 0 | Details |
| US1625097A | Air pump | Expired / Lapsed | 1921-11-23 | 1927-04-19 | 0 | Details |
| US1589477A | Propulsion mechanism for children's vehicles | Expired / Lapsed | 1922-05-10 | 1926-06-22 | 0 | Details |
| US1339811A | Valve-regulating means | Expired / Lapsed | 1919-05-28 | 1920-05-11 | 0 | Details |