Granted Patent
Utility
US 4,257,917 · App. 05/958,585
Catalyst for preparation of soluble poly(dichlorophosphazenes)
Inventors:
Kennard A. Reynard, Arthur H. Gerber
Patented Case
View Patent ↗
Granted: Mar 24, 1981
Filed: Nov 7, 1978
Inventors
Kennard A. Reynard
Arthur H. Gerber
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.