Granted Patent
Utility
US 5,458,767 · App. 08/288,511
Fuel filter assembly with dual filter media and by-pass device
Inventor:
Walter H. Stone
Patented Case
View Patent ↗
Granted: Oct 17, 1995
Filed: Aug 10, 1994
Inventor
Walter H. Stone
Assignee (at issue)
Parker-Hannifin Corporation
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.