Granted Patent
Utility
US 5,447,992 · App. 08/259,223
Heat and ozone resistant NBR/epichlorohydrin blends
Inventor:
James Walter Horvath
Patented Case
View Patent ↗
Granted: Sep 5, 1995
Filed: Jun 13, 1994
Inventor
James Walter Horvath
Assignee (at issue)
THE GOODYEAR TIRE & RUBBER 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.