Granted Patent
Utility
US 5,592,387 · App. 08/267,737
Method of operating a natural gas vehicle as a function of ambient methane concentration
Inventors:
Mordecai Shelef, Eleftherios M. Logothetis
Patented Case
View Patent ↗
Granted: Jan 7, 1997
Filed: Jun 29, 1994
Inventors
Mordecai Shelef
Eleftherios M. Logothetis
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.