Granted Patent
Utility
US 4,980,423 · App. 07/402,203
Reactive polyvinyl chloride and polymer products made therefrom
Inventor:
Zaev Sharaby
Patented Case
View Patent ↗
Granted: Dec 25, 1990
Filed: Sep 1, 1989
Inventor
Zaev Sharaby
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.