← Back to Companies

PFANSTIEHL CHEMICAL Co

PFANSTIEHL

Active Patents

0

Total Holdings

5

Patent Holdings

Filter in Explorer →

Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US2492429A	Electric translating device	Expired / Lapsed	1945-08-17	1949-12-27	0	Details
US2313766A	Container for phonograph needles and the like	Expired / Lapsed	1941-05-01	1943-03-16	0	Details
US2228235A	Hardened base metal pen nib	Expired / Lapsed	1940-03-28	1941-01-07	0	Details
US2169966A	Small shaped metallic object	Expired / Lapsed	1938-11-28	1939-08-15	0	Details
US2004708A	Bearing metal and bearing	Expired / Lapsed	1931-10-10	1935-06-11	0	Details