Granted Patent
Utility
US 4,971,015 · App. 07/499,148
Combustion engine with multi-fuel capability
Inventor:
Eugene V. Gonze
Patented Case
View Patent ↗
Granted: Nov 20, 1990
Filed: Mar 26, 1990
Inventor
Eugene V. Gonze
Assignee (at issue)
General Motors LLC
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.