Granted Patent
Utility
US 6,457,457 · App. 09/154,386
Control method
Inventor:
Anthony Thomas Harcombe
Patented Case
View Patent ↗
Granted: Oct 1, 2002
Filed: Sep 16, 1998
Inventor
Anthony Thomas Harcombe
Assignees (at issue)
Delphi Technologies
Caterpillar Inc.
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.