Granted Patent
Utility
US 4,823,853 · App. 06/865,447
Noise control techniques for tires employing three different size design cycles
Inventor:
Leo J. Hitzky
Patented Case
View Patent ↗
Granted: Apr 25, 1989
Filed: May 21, 1986
Inventor
Leo J. Hitzky
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.