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Guiberson Corp

Guiberson

Active Patents

0

Total Holdings

4

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US2401119A	Well tool	Expired / Lapsed	1942-10-28	1946-05-28	0	Details
US2392244A	Well tool	Expired / Lapsed	1942-07-15	1946-01-01	0	Details
US2230107A	Insertable and removable flow valves	Expired / Lapsed	1939-06-23	1941-01-28	0	Details
US2144997A	Well swab	Expired / Lapsed	1936-04-13	1939-01-24	0	Details