Granted Patent
Utility
US 5,224,460 · App. 07/832,831
Method of operating an automotive type internal combustion engine
Inventors:
Peter H. Havstad, Rodney John Tabaczynski
Patented Case
View Patent ↗
Granted: Jul 6, 1993
Filed: Feb 7, 1992
Inventors
Peter H. Havstad
Rodney John Tabaczynski
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.