Granted Patent
Utility
US 5,720,528 · App. 08/768,873
Rotatable cutting tool-holder assembly
Inventor:
Cary D. Ritchey
Patented Case
View Patent ↗
Granted: Feb 24, 1998
Filed: Dec 17, 1996
Inventor
Cary D. Ritchey
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.