Granted Patent
Utility
US 4,220,052 · App. 06/042,395
Pin retention by interference fit differential
Inventor:
Jerome F. Sheldon
Patented Case
View Patent ↗
Granted: Sep 2, 1980
Filed: May 25, 1979
Inventor
Jerome F. Sheldon
Assignee (at issue)
REXNORD GMBH
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.