Granted Patent
Utility
US 4,331,741 · App. 06/040,685
Nickel-base hard facing alloy
Inventor:
Richard Kevin Wilson
Patented Case
View Patent ↗
Granted: May 25, 1982
Filed: May 21, 1979
Inventor
Richard Kevin Wilson
Assignee (at issue)
The International Nickel Company, 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.