Granted Patent
Utility
US 4,327,064 · App. 06/174,765
Solution polymerization of cyclic dichlorophosphazene oligomers in cycloaliphatic solvents
Inventors:
John W. Fieldhouse, Steven L. Fenske
Patented Case
View Patent ↗
Granted: Apr 27, 1982
Filed: Aug 4, 1980
Inventors
John W. Fieldhouse
Steven L. Fenske
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.