Granted Patent
Utility
US 6,631,782 · App. 09/720,009
Electrically assisted power steering system for motor vehicles
Inventor:
Wolfgang Rieger
Patented Case
View Patent ↗
Granted: Oct 14, 2003
Filed: Dec 19, 2000
Inventor
Wolfgang Rieger
Assignee (at issue)
ZF Lenksysteme GmbH
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.