Granted Patent
Utility
US 5,261,302 · App. 07/958,859
Quick-change tool holder with adjustment mechanism for repeatable center-height adjustment
Inventors:
Robert A. Erickson, James A. Oshnock
Patented Case
View Patent ↗
Granted: Nov 16, 1993
Filed: Oct 7, 1992
Inventors
Robert A. Erickson
James A. Oshnock
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.