Granted Patent
Utility
US 5,643,093 · App. 08/545,481
Aluminum driveshaft having reduced diameter end portion
Inventor:
Douglas E. Breese
Patented Case
View Patent ↗
Granted: Jul 1, 1997
Filed: Oct 19, 1995
Inventor
Douglas E. Breese
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.