Granted Patent
Utility
US 5,367,990 · App. 08/173,009
Part load gas exchange strategy for an engine with variable lift camless valvetrain
Inventor:
Michael M. Schechter
Patented Case
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Granted: Nov 29, 1994
Filed: Dec 27, 1993
Inventor
Michael M. Schechter
Assignee (at issue)
Ford Motor 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.