Granted Patent
Utility
US 5,452,631 · App. 08/224,428
Apparatus for holding a toolholder shank utilizing a rotatable cam to minimize kickback
Inventor:
Robert A. Erickson
Patented Case
View Patent ↗
Granted: Sep 26, 1995
Filed: Apr 8, 1994
Inventor
Robert A. Erickson
Assignee (at issue)
KENNAMETAL 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.