Granted Patent
Utility
US 4,798,640 · App. 07/133,097
"Tire repair by ""patch only"" method"
Inventors:
Russell W. Koch, Douglas D. Snyder
Patented Case
View Patent ↗
Granted: Jan 17, 1989
Filed: Dec 14, 1987
Inventors
Russell W. Koch
Douglas D. Snyder
Assignee (at issue)
The Firestone 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.