Granted Patent
Utility
US 4,318,436 · App. 06/179,596
Tire sidewall addition members that undergo perceptible change during abnormal operation
Inventor:
Louis W. Shurman
Patented Case
View Patent ↗
Granted: Mar 9, 1982
Filed: Aug 19, 1980
Inventor
Louis W. Shurman
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.