Granted Patent
Utility
US 4,771,818 · App. 06/290,217
Process of shaping a metal alloy product
Inventor:
Malachi P. Kenney
Patented Case
View Patent ↗
Granted: Sep 20, 1988
Filed: Aug 5, 1981
Inventor
Malachi P. Kenney
Assignee (at issue)
Alumax 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.