Granted Patent
Utility
US 4,045,381 · App. 05/644,838
Organosilicone polymers
Inventors:
Bela Prokai, Bernard Kanner
Patented Case
View Patent ↗
Granted: Aug 30, 1977
Filed: Dec 29, 1975
Inventors
Bela Prokai
Bernard Kanner
Assignee (at issue)
Union Carbide Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.