Granted Patent
Utility
US 6,598,697 · App. 09/917,273
Rack-and-pinion type steering apparatus with pressure equalization system
Inventor:
Wilson Yukio Oishi
Patented Case
View Patent ↗
Granted: Jul 29, 2003
Filed: Jul 30, 2001
Inventor
Wilson Yukio Oishi
Assignee (at issue)
Dana Industrial S/A
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.