Granted Patent
Utility
US 5,981,663 · App. 09/038,592
Chlorinated polyvinyl chloride compound having excellent physical, chemical resistance and processing properties
Inventors:
Arthur L. Backman, Bernard F. Cinadr
Patented Case
View Patent ↗
Granted: Nov 9, 1999
Filed: Mar 11, 1998
Inventors
Arthur L. Backman
Bernard F. Cinadr
Assignee (at issue)
B. F. Goodrich 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.