Granted Patent
Utility
US 5,208,280 · App. 07/890,496
Elastomers and tire with N-alkyl-p-quinonediimino triazine stabilizers
Inventor:
Edward L. Wheeler
Patented Case
View Patent ↗
Granted: May 4, 1993
Filed: May 28, 1992
Inventor
Edward L. Wheeler
Assignee (at issue)
Uniroyal Chemical Company, 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.