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OIL CENTER TOOL CO

OIL CENTER

Active Patents

0

Total Holdings

4

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US2610689A	Wellhead seal	Expired / Lapsed	1946-08-19	1952-09-16	0	Details
US2540455A	Hydraulic packer setting assembly	Expired / Lapsed	1946-06-27	1951-02-06	0	Details
US2456081A	Well-head seal	Expired / Lapsed	1945-11-02	1948-12-14	0	Details
US2426743A	Circulating well head	Expired / Lapsed	1943-06-24	1947-09-02	0	Details