Granted Patent
Utility
US 4,898,668 · App. 07/251,907
Fuel filter with heater
Inventors:
David H. Hodgkins, Alex Shinkevich
Patented Case
View Patent ↗
Granted: Feb 6, 1990
Filed: Sep 30, 1988
Inventors
David H. Hodgkins
Alex Shinkevich
Assignee (at issue)
Stanadyne Automotive Corp.
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.