Granted Patent
Utility
US 6,270,293 · App. 09/219,328
Toolholder assembly
Inventors:
Robert A. Erickson, William Michael Long
Patented Case
View Patent ↗
Granted: Aug 7, 2001
Filed: Dec 22, 1998
Inventors
Robert A. Erickson
William Michael Long
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.