Granted Patent
Utility
US 4,956,497 · App. 07/185,013
Phenylene ether resin based thermoplastic compositions
Inventors:
Peter H. Thompson, Richard J. Smalling
Patented Case
View Patent ↗
Granted: Sep 11, 1990
Filed: Apr 22, 1988
Inventors
Peter H. Thompson
Richard J. Smalling
Assignee (at issue)
General Electric 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.