Granted Patent
Utility
US 4,495,698 · App. 06/413,666
Concave grind knife blade and method of making
Inventor:
Joseph R. Gerber, Jr.
Patented Case
View Patent ↗
Granted: Jan 29, 1985
Filed: Sep 1, 1982
Inventor
Joseph R. Gerber, Jr.
Assignee (at issue)
Gerber Legendary Blades, Inc.
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.