Granted Patent
Utility
US 4,665,152 · App. 06/773,907
Curable poly(aryloxyphosphazene) copolymers
Inventors:
William M. Cole, Joseph A. Dembek, Jr., Vispi R. Sagar
Patented Case
View Patent ↗
Granted: May 12, 1987
Filed: Sep 9, 1985
Inventors
William M. Cole
Joseph A. Dembek, Jr.
Vispi R. Sagar
Assignee (at issue)
The Firestone Tire & Rubber Company
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.