Granted Patent
Utility
US 6,196,094 · App. 08/406,088
Tool unit clamping apparatus having a locking mechanism with increased gripping force
Inventor:
Robert A. Erickson
Patented Case
View Patent ↗
Granted: Mar 6, 2001
Filed: Mar 17, 1995
Inventor
Robert A. Erickson
Assignee (at issue)
Kennametal PC 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.