Granted Patent
Utility
US 5,652,287 · App. 08/631,747
Ductile poly(arylene sulfide) resin compositions
Inventors:
Vincent J. Sullivan, Andrew Auerbach
Patented Case
View Patent ↗
Granted: Jul 29, 1997
Filed: Apr 10, 1996
Inventors
Vincent J. Sullivan
Andrew Auerbach
Assignee (at issue)
Hoechst Celanese 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.