United States Pipe and Foundry Co LLC
United StaActive Patents
0
Total Holdings
7
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US4026586A | Plain end pipe joint | Expired / Lapsed | 1976-03-15 | 1977-05-31 | 2 | Details |
| US3341232A | Pipe joint | Expired / Lapsed | 1966-09-09 | 1967-09-12 | 2 | Details |
| US2953398A | Pipe joint | Expired / Lapsed | 1956-05-28 | 1960-09-20 | 0 | Details |
| US2165052A | Flexible pipe joint | Expired / Lapsed | 1938-01-06 | 1939-07-04 | 0 | Details |
| US1954892A | Centrifugally cast cast iron pipe | Expired / Lapsed | 1933-01-17 | 1934-04-17 | 0 | Details |
| US1949433A | Method and apparatus for casting pipes centrifugally | Expired / Lapsed | 1932-10-19 | 1934-03-06 | 0 | Details |
| US1891234A | Method of modifying internal strains in metal objects | Expired / Lapsed | 1929-11-06 | 1932-12-20 | 0 | Details |