Granted Patent
Utility
US 6,513,367 · App. 09/791,434
Method of monitoring engine lubricant condition
Inventors:
Frank Bondarowicz, Kevin Calstrom, Gerald L. Larson
Patented Case
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Granted: Feb 4, 2003
Filed: Feb 22, 2001
Inventors
Frank Bondarowicz
Kevin Calstrom
Gerald L. Larson
Assignee (at issue)
International Truck Intellectual Property Company, LLC
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.