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Page Oil Tools Inc

Page Oil T

Active Patents

0

Total Holdings

5

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US3065794A	Retrievable well flow control valve	Expired / Lapsed	1957-08-19	1962-11-27	0	Details
US3035641A	Down tubing self-closing flow control valve	Expired / Lapsed	1957-11-15	1962-05-22	0	Details
US2717004A	Multiple valve	Expired / Lapsed	1949-04-18	1955-09-06	0	Details
US2606618A	Well packer	Expired / Lapsed	1949-01-07	1952-08-12	0	Details
US2532418A	Hydraulically operated anchor for tubing or the like	Expired / Lapsed	1947-04-21	1950-12-05	0	Details