Granted Patent
Utility
US 4,609,510 · App. 06/684,828
Tire manufacturing process
Inventor:
Robert George Flygenring
Patented Case
View Patent ↗
Granted: Sep 2, 1986
Filed: Dec 21, 1984
Inventor
Robert George Flygenring
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.