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Superior Oil Co

Superior O

Active Patents

0

Total Holdings

5

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
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
US2923531A	Drilling	Expired / Lapsed	1956-04-26	1960-02-02	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