Granted Patent
Utility
US 4,557,344 · App. 06/645,322
Servosteering, especially for motor vehicles
Inventor:
Armin Lang
Patented Case
View Patent ↗
Granted: Dec 10, 1985
Filed: Aug 23, 1984
Inventor
Armin Lang
Assignee (at issue)
Zahnradfabrik Friedrichshafen 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.