Lock Joint Pipe Co
Lock JointActive Patents
0
Total Holdings
6
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2911859A | Method for tapping pipe | Expired / Lapsed | 1955-04-22 | 1959-11-10 | 0 | Details |
| US2470009A | Pipe | Expired / Lapsed | 1944-06-29 | 1949-05-10 | 0 | Details |
| US2223434A | Pipe joint | Expired / Lapsed | 1939-06-03 | 1940-12-03 | 0 | Details |
| US2050985A | Method for tapping pipe | Expired / Lapsed | 1934-01-29 | 1936-08-11 | 0 | Details |
| US1976589A | Pipe joint | Expired / Lapsed | 1933-04-20 | 1934-10-09 | 0 | Details |
| US1856581A | Pipe joint | Expired / Lapsed | 1930-02-27 | 1932-05-03 | 0 | Details |