Granted Patent
Utility
US 5,163,404 · App. 07/781,724
Vehicle engine ignition timing system and method with windowing knock control
Inventors:
Michael R. Witkowski, William J. Bolander, Kenneth R. Kridner
Patented Case
View Patent ↗
Granted: Nov 17, 1992
Filed: Oct 22, 1991
Inventors
Michael R. Witkowski
William J. Bolander
Kenneth R. Kridner
Assignees (at issue)
DELCO ELECTRONICS CORPORATION
Saturn Corporation
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.