Granted Patent
Utility
US 5,265,467 · App. 07/758,999
Apparatus for monitoring operation of a drive shaft
Inventor:
John S. Baer
Patented Case
View Patent ↗
Granted: Nov 30, 1993
Filed: Sep 6, 1991
Inventor
John S. Baer
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.