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Thompson Grinder Co

Thompson G

Active Patents

0

Total Holdings

5

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US3083535A	Hydraulic servo system	Expired / Lapsed	1961-09-12	1963-04-02	2	Details
US2612115A	Vane pump and vane therefor	Expired / Lapsed	1949-07-25	1952-09-30	0	Details
US2612114A	Vane pump or motor	Expired / Lapsed	1948-04-06	1952-09-30	0	Details
US2606571A	Multipurpose control valve	Expired / Lapsed	1948-10-22	1952-08-12	0	Details
US2436466A	Method and apparatus for grinding and lapping	Expired / Lapsed	1945-09-27	1948-02-24	0	Details