Granted Patent
Utility
US 6,637,157 · App. 09/685,548
Vehicle liftgate power operating system
Inventors:
Douglas Dombrowski, Joseph M. Johnson, Howard W. Kuhlman, Michael G Wygle
Patented Case
View Patent ↗
Granted: Oct 28, 2003
Filed: Oct 10, 2000
Inventors
Douglas Dombrowski
Joseph M. Johnson
Howard W. Kuhlman
Michael G Wygle
Assignee (at issue)
Delphi Technologies
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.