Granted Patent
Utility
US 5,406,835 · App. 08/139,807
Method for monitoring the switching process of a coupling device
Inventor:
Gehard Doll
Patented Case
View Patent ↗
Granted: Apr 18, 1995
Filed: Oct 22, 1993
Inventor
Gehard Doll
Assignee (at issue)
MERCEDES-BENZ GROUP AG
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.