Granted Patent
Utility
US 5,165,702 · App. 07/703,302
Seal ring assembly for high pressure valves
Inventor:
James J. Duffy
Patented Case
View Patent ↗
Granted: Nov 24, 1992
Filed: May 20, 1991
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.