Granted Patent
Utility
US 4,957,575 · App. 07/332,252
Tread application method and apparatus
Inventor:
Robert A. Cronin
Patented Case
View Patent ↗
Granted: Sep 18, 1990
Filed: Mar 31, 1989
Inventor
Robert A. Cronin
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.