Granted Patent
Utility
US 5,783,994 · App. 08/835,383
Vehicle security system with combined key fob and keypad anti-driveaway protection
Inventors:
Philip J. Koopman, Jr., Roger D. Carroll, Richard Robert Grzybowski, Paul Marshall
Patented Case
View Patent ↗
Granted: Jul 21, 1998
Filed: Apr 7, 1997
Inventors
Philip J. Koopman, Jr.
Roger D. Carroll
Richard Robert Grzybowski
Paul Marshall
Assignee (at issue)
United Technologies Automotive
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.