Superior Oil Co
Superior OActive Patents
0
Total Holdings
8
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| GB873480A | Improvements in or relating to apparatus for drilling and w… | Expired / Lapsed | 1957-09-03 | — | 0 | Details |
| US3017934A | Casing support | Expired / Lapsed | 1955-09-30 | 1962-01-23 | 0 | Details |
| US3015360A | Method and apparatus for underwater drilling | Expired / Lapsed | 1957-08-19 | 1962-01-02 | 0 | Details |
| US3012610A | Drilling | Expired / Lapsed | 1956-07-26 | 1961-12-12 | 0 | Details |
| US2923531A | Drilling | Expired / Lapsed | 1956-04-26 | 1960-02-02 | 0 | Details |
| US2909359A | Off-shore drilling | Expired / Lapsed | 1956-12-24 | 1959-10-20 | 0 | Details |
| US2808230A | Off-shore drilling | Expired / Lapsed | 1955-01-17 | 1957-10-01 | 0 | Details |
| US2808229A | Off-shore drilling | Expired / Lapsed | 1954-11-12 | 1957-10-01 | 0 | Details |