Granted Patent
Utility
US 5,576,375 · App. 07/207,321
Poly (phenylene-vinylene) resins from vinylethynylbenzene and diethynylbenzene
Inventors:
Robert E. Olsen, Harlan F. Reese, Stephen J. Backlund
Patented Case
View Patent ↗
Granted: Nov 19, 1996
Filed: Jun 15, 1988
Inventors
Robert E. Olsen
Harlan F. Reese
Stephen J. Backlund
Assignee (at issue)
AEROJET-GENERAL 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.