Granted Patent
Utility
US 4,622,361 · App. 06/717,346
Flame retarded high modulus polyurethane elastomers and method of making same
Inventors:
William A. Gill, Richard M. Gerkin
Patented Case
View Patent ↗
Granted: Nov 11, 1986
Filed: Mar 29, 1985
Inventors
William A. Gill
Richard M. Gerkin
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.