Granted Patent
Utility
US 4,372,847 · App. 06/295,546
Fuel filter assembly and cartridge
Inventor:
Andrew Lewis
Patented Case
View Patent ↗
Granted: Feb 8, 1983
Filed: Aug 24, 1981
Inventor
Andrew Lewis
Assignee (at issue)
Chicago Rawhide Manufacturing 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.