Granted Patent
Utility
US 6,769,403 · App. 10/150,879
Spark retard control during cylinder transitions in a displacement on demand engine
Inventors:
Allen B. Rayl, Gregory P. Matthews
Patented Case
View Patent ↗
Granted: Aug 3, 2004
Filed: May 17, 2002
Inventors
Allen B. Rayl
Gregory P. Matthews
Assignee (at issue)
General Motors LLC
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.