Granted Patent
Utility
US 4,424,725 · App. 06/188,668
Locking differential mechanism with improved holdout ring and spring retainer
Inventor:
James R. Bawks
Patented Case
View Patent ↗
Granted: Jan 10, 1984
Filed: Sep 19, 1980
Inventor
James R. Bawks
Assignee (at issue)
Tractech 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.