Granted Patent
Utility
US 4,330,236 · App. 06/135,036
System for keying discs to a shaft
Inventor:
Albert F. LeBreton
Patented Case
View Patent ↗
Granted: May 18, 1982
Filed: Mar 28, 1980
Inventor
Albert F. LeBreton
Assignee (at issue)
Westinghouse Electric Company LLC
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.