Granted Patent
Utility
US 4,309,508 · App. 06/163,974
Siloxane copolymer mixtures useful as foam stabilizers in high resilience polyurethane foam
Inventors:
Feyyaz O. Baskent, Bela Prokai
Patented Case
View Patent ↗
Granted: Jan 5, 1982
Filed: Jun 30, 1980
Inventors
Feyyaz O. Baskent
Bela Prokai
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.