Granted Patent
Utility
US 5,670,042 · App. 08/079,662
Fuel filter assembly with replaceable element having integral cover
Inventors:
Michael D. Clausen, Walter H. Stone
Patented Case
View Patent ↗
Granted: Sep 23, 1997
Filed: Jun 18, 1993
Inventors
Michael D. Clausen
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.