Granted Patent
Utility
US 5,244,571 · App. 07/683,096
Fuel filter assembly with heater
Inventors:
John F. Church, Kenneth N. Wynne, Darwin L. Brooks, Walter H. Stone, Peter Popoff
Patented Case
View Patent ↗
Granted: Sep 14, 1993
Filed: Apr 10, 1991
Inventors
John F. Church
Kenneth N. Wynne
Darwin L. Brooks
Walter H. Stone
Peter Popoff
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.