Granted Patent
Utility
US 4,711,283 · App. 07/008,690
Heavy duty pneumatic tire tread with lug and block pattern
Inventors:
Mark Leonard Bonko, Loran C. Lopp, Jr.
Patented Case
View Patent ↗
Granted: Dec 8, 1987
Filed: Jan 30, 1987
Inventors
Mark Leonard Bonko
Loran C. Lopp, Jr.
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.