Granted Patent
Utility
US 4,426,901 · App. 06/321,983
Crush cutter
Inventors:
James E. Hogan, George M. Camplair
Patented Case
View Patent ↗
Granted: Jan 24, 1984
Filed: Nov 16, 1981
Inventors
James E. Hogan
George M. Camplair
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.