Granted Patent
Utility
US 4,434,866 · App. 06/396,982
Speed-sensitive power steering system
Inventor:
James J. Duffy
Patented Case
View Patent ↗
Granted: Mar 6, 1984
Filed: May 19, 1982
Inventor
James J. Duffy
Assignee (at issue)
Ford Motor Company
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.