← Back to Companies

DuPont Viscoloid Co

DuPont Vis

Active Patents

0

Total Holdings

4

Patent Holdings

Filter in Explorer →

Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US2030901A	Process for depolymerizing alpha substituted acrylic acid e…	Expired / Lapsed	1935-01-10	1936-02-18	0	Details
US1994164A	Manufacture of decorative plastic	Expired / Lapsed	1933-09-02	1935-03-12	0	Details
US1985997A	Celluloid article and method of making same	Expired / Lapsed	1932-06-29	1935-01-01	0	Details
US1813423A	Barrette	Expired / Lapsed	1930-01-24	1931-07-07	0	Details