Granted Patent
Utility
US 5,709,587 · App. 08/620,820
Method and apparatus for honing an elongate rotary tool
Inventor:
William R. Shaffer
Patented Case
View Patent ↗
Granted: Jan 20, 1998
Filed: Mar 25, 1996
Inventor
William R. Shaffer
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.