Granted Patent
Utility
US 4,958,488 · App. 07/339,449
Combustion system
Inventors:
Colin Wilkes, Hukam Chand Mongia, Peter C. Tramm
Patented Case
View Patent ↗
Granted: Sep 25, 1990
Filed: Apr 17, 1989
Inventors
Colin Wilkes
Hukam Chand Mongia
Peter C. Tramm
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.