Granted Patent
Utility
US 5,733,649 · App. 08/710,799
Matrix for a hard composite
Inventors:
Harold E. Kelley, William E. Silvis, Charles J. Terry
Patented Case
View Patent ↗
Granted: Mar 31, 1998
Filed: Sep 23, 1996
Inventors
Harold E. Kelley
William E. Silvis
Charles J. Terry
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.