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American Pipe and Construction Co

American P

Active Patents

0

Total Holdings

4

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US3147014A	Foam gasket joint for concrete pipe and method of making sa…	Expired / Lapsed	1962-07-20	1964-09-01	2	Details
US2675333A	Pipe apparatus	Expired / Lapsed	1949-12-17	1954-04-13	0	Details
US2440725A	Method of making composite plastic lined metal pipe	Expired / Lapsed	1944-09-04	1948-05-04	0	Details
US2417881A	Method of making plastic-metal pipe	Expired / Lapsed	1943-12-13	1947-03-25	0	Details