Granted Patent
Utility
US 5,322,484 · App. 07/995,469
Locking differential with clutch activated by electrorheological fluid coupling
Inventor:
David C. Reuter
Patented Case
View Patent ↗
Granted: Jun 21, 1994
Filed: Dec 22, 1992
Inventor
David C. Reuter
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.