Granted Patent
Utility
US 5,535,722 · App. 08/265,894
Knock detection system and control method for an internal combustion engine
Inventors:
William J. Graessley, James Zehnal, Kevin Ronald Carlstrom, Mitchell Anthony DePerno, Daniel P. Bartolucci, James W. Forbes
Patented Case
View Patent ↗
Granted: Jul 16, 1996
Filed: Jun 27, 1994
Inventors
William J. Graessley
James Zehnal
Kevin Ronald Carlstrom
Mitchell Anthony DePerno
Daniel P. Bartolucci
James W. Forbes
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.