Granted Patent
Utility
US 4,414,029 · App. 06/265,534
Powder mixtures for wear resistant facings and products produced therefrom
Inventors:
Harold C. Newman, William M. Stoll
Patented Case
View Patent ↗
Granted: Nov 8, 1983
Filed: May 20, 1981
Inventors
Harold C. Newman
William M. Stoll
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.