Granted Patent
Utility
US 5,913,643 · App. 08/844,867
Adjustable lead angle chamfering toolholder
Inventors:
Jeremy L. Fowler, Craig S. Adcock, Jeffrey E. Hartshorn, Scott W. Vogel
Patented Case
View Patent ↗
Granted: Jun 22, 1999
Filed: Apr 22, 1997
Inventors
Jeremy L. Fowler
Craig S. Adcock
Jeffrey E. Hartshorn
Scott W. Vogel
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.