Granted Patent
Utility
US 5,233,228 · App. 07/670,756
Control device for the manual adjustment of reversible electrical adjusting devices
Inventor:
Karl-Heinz Krieg
Patented Case
View Patent ↗
Granted: Aug 3, 1993
Filed: Mar 15, 1991
Inventor
Karl-Heinz Krieg
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.