Granted Patent
Utility
US 6,533,935 · App. 09/997,795
Drain valve for fuel filter water separator
Inventors:
Paul D. Miller, John Arnett, Melvin Douglas McCormick
Patented Case
View Patent ↗
Granted: Mar 18, 2003
Filed: Nov 30, 2001
Inventors
Paul D. Miller
John Arnett
Melvin Douglas McCormick
Assignee (at issue)
Fleetguard, Inc.
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.