Granted Patent
Utility
US 4,376,429 · App. 06/276,605
Adaptive cylinder by cylinder knock retard control
Inventor:
Ralph A. Youngblood
Patented Case
View Patent ↗
Granted: Mar 15, 1983
Filed: Jun 23, 1981
Inventor
Ralph A. Youngblood
Assignee (at issue)
Ford Motor Company
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.