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General Spring Corp

General Sp

Active Patents

0

Total Holdings

5

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US2643109A	Spring device	Expired / Lapsed	1945-05-28	1953-06-23	0	Details
US2439067A	Support device	Expired / Lapsed	1943-03-27	1948-04-06	0	Details
US2335833A	Supporting and bracing device	Expired / Lapsed	1942-03-09	1943-11-30	0	Details
US2225515A	Support device	Expired / Lapsed	1938-12-10	1940-12-17	0	Details
US2156468A	Spring device	Expired / Lapsed	1936-05-22	1939-05-02	0	Details