Granted Patent
Utility
US 5,509,302 · App. 08/236,812
Misfire detection in internal combustion engines
Inventors:
Jeffrey R. Drexel, Larry T. Nitz
Patented Case
View Patent ↗
Granted: Apr 23, 1996
Filed: May 2, 1994
Inventors
Jeffrey R. Drexel
Larry T. Nitz
Assignee (at issue)
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.