Granted Patent
Utility
US 5,370,716 · App. 07/983,986
High Z sialon and cutting tools made therefrom and method of using
Inventors:
Pankaj K. Mehrotra, Joyce L. Swiokla, Robert D. Nixon
Patented Case
View Patent ↗
Granted: Dec 6, 1994
Filed: Nov 30, 1992
Inventors
Pankaj K. Mehrotra
Joyce L. Swiokla
Robert D. Nixon
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.