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Westinghouse Air Brake Co

Westinghou

Active Patents

0

Total Holdings

4

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US3117303A	Random access switching system	Expired / Lapsed	1959-03-13	1964-01-07	2	Details
US2643370A	Electric circuit checking equipment	Expired / Lapsed	1951-03-26	1953-06-23	0	Details
US2311851A	Check valve device	Expired / Lapsed	1941-11-27	1943-02-23	0	Details
US2088180A	Packing	Expired / Lapsed	1934-11-03	1937-07-27	0	Details