Granted Patent
Utility
US 5,976,050 · App. 09/148,446
Axle shaft ball retainer
Inventor:
Earl James Irwin
Patented Case
View Patent ↗
Granted: Nov 2, 1999
Filed: Sep 4, 1998
Inventor
Earl James Irwin
Assignee (at issue)
DANA LIMITED
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.