Granted Patent
Utility
US 5,130,198 · App. 07/515,533
Polymeric-containing compositions with improved oxidative stability
Inventors:
Robert Swisher, Peter C. Gaa, James W. Kasunic
Patented Case
View Patent ↗
Granted: Jul 14, 1992
Filed: Apr 27, 1990
Inventors
Robert Swisher
Peter C. Gaa
James W. Kasunic
Assignee (at issue)
PPG Industries, Inc.
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.