Granted Patent
Utility
US 4,858,505 · App. 06/493,087
Pivotable knife
Inventors:
Donald O. Still, Hubert T. Hovance, George J. Burley
Patented Case
View Patent ↗
Granted: Aug 22, 1989
Filed: May 9, 1983
Inventors
Donald O. Still
Hubert T. Hovance
George J. Burley
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.