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Warren Webster & Co

Warren Web

Active Patents

0

Total Holdings

5

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US2547933A	Automatic temperature control system	Expired / Lapsed	1946-12-12	1951-04-10	0	Details
US2487257A	Method of expanding containers by freezing liquid therein	Expired / Lapsed	1946-11-23	1949-11-08	0	Details
US2477729A	Electromagnetic motor control system	Expired / Lapsed	1947-07-11	1949-08-02	0	Details
US2137024A	Apparatus for controlling heating systems	Expired / Lapsed	1936-04-22	1938-11-15	0	Details
US1271455A	Means for making elastic vessels.	Expired / Lapsed	1915-09-22	1918-07-02	0	Details