Granted Patent
Utility
US 4,401,622 · App. 06/255,357
Nickel-chromium-iron alloy
Inventors:
Raymond C. Benn, John R. Mihalisin, LeRoy R. Curwick, Howard F. Merrick
Patented Case
View Patent ↗
Granted: Aug 30, 1983
Filed: Apr 20, 1981
Inventors
Raymond C. Benn
John R. Mihalisin
LeRoy R. Curwick
Howard F. Merrick
Assignees (at issue)
The International Nickel Company, Inc.
HOWMET CORPORATION
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.