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Pittsburgh Corning LLC

Pittsburgh

Active Patents

0

Total Holdings

4

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
GB627523A	Improvements in or relating to the formation of cellular bo…	Expired / Lapsed	1946-12-04	—	0	Details
US4056399A	Acid and heat resistant mortars for cellular glass bodies	Expired / Lapsed	1976-05-06	1977-11-01	14	Details
US3957520A	Acid and heat-resistant mortars for cellular glass composit…	Expired / Lapsed	1975-01-07	1976-05-18	10	Details
US2288521A	Hollow glass block	Expired / Lapsed	1940-01-27	1942-06-30	0	Details