Granted Patent
Utility
US 4,789,722 · App. 07/080,144
Polyarylene polyether made using mixed base system
Inventors:
Harold Jabloner, Tuyen T. Nguyen
Patented Case
View Patent ↗
Granted: Dec 6, 1988
Filed: Jul 29, 1987
Inventors
Harold Jabloner
Tuyen T. Nguyen
Assignee (at issue)
HERCULES LLC
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.