Granted Patent
Utility
US 5,310,491 · App. 08/046,252
Lubricant composition containing antioxidant
Inventors:
Bruce W. Downs, Robert G. Rowland
Patented Case
View Patent ↗
Granted: May 10, 1994
Filed: Apr 13, 1993
Inventors
Bruce W. Downs
Robert G. Rowland
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.