Granted Patent
Utility
US 6,653,747 · App. 09/678,033
Electronic key system including ignition and transmission control
Inventors:
David T. Proefke, Thomas E. Utter, Robert Baillargeon, Thomas W. Pfeffer, Jeffrey R. Coil, Andrew C. Brenz, Kenneth P. Orlando, Tejas Desai, Christian O. Johnson, Ronald J. Plichta
Patented Case
View Patent ↗
Granted: Nov 25, 2003
Filed: Oct 3, 2000
Inventors
David T. Proefke
Thomas E. Utter
Robert Baillargeon
Thomas W. Pfeffer
Jeffrey R. Coil
Andrew C. Brenz
Kenneth P. Orlando
Tejas Desai
Christian O. Johnson
Ronald J. Plichta
Assignee (at issue)
Siemens VDO Automotive AG
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.