← Back to Companies

JOHN WALDRON Corp

JOHN WALDR

Active Patents

0

Total Holdings

5

Patent Holdings

Filter in Explorer →

Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US2762077A	Method and machine for casting film	Expired / Lapsed	1955-02-09	1956-09-11	0	Details
US2688919A	Doctor blade holder	Expired / Lapsed	1952-12-17	1954-09-14	0	Details
US2214787A	Coating machine	Expired / Lapsed	1938-03-03	1940-09-17	0	Details
US2157367A	Pneumatic vibrating mechanism	Expired / Lapsed	1936-03-12	1939-05-09	0	Details
US2022703A	Gear type coupling	Expired / Lapsed	1934-01-29	1935-12-03	0	Details