Granted Patent
Utility
US 4,484,610 · App. 06/419,334
Heavy duty pneumatic tire tread
Inventors:
Bill J. Wallet, A. Robert Casimiro
Patented Case
View Patent ↗
Granted: Nov 27, 1984
Filed: Sep 17, 1982
Inventors
Bill J. Wallet
A. Robert Casimiro
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.