Granted Patent
Utility
US 5,111,660 · App. 07/667,125
Parallel flow electronically variable orifice for variable assist power steering system
Inventor:
Roger W. Gettel
Patented Case
View Patent ↗
Granted: May 12, 1992
Filed: Mar 11, 1991
Inventor
Roger W. Gettel
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.