Granted Patent
Utility
US 5,789,686 · App. 08/465,773
Composite cermet articles and method of making
Inventors:
Ted R. Massa, John S. Van Kirk, Robert R. McNaughton, Jr.
Patented Case
View Patent ↗
Granted: Aug 4, 1998
Filed: Jun 6, 1995
Inventors
Ted R. Massa
John S. Van Kirk
Robert R. McNaughton, Jr.
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.