Granted Patent
Utility
US 5,531,105 · App. 08/422,400
Method and system for determining engine oil consumption
Inventors:
Dick Y. Leong, Alex D. Colvin, Keith R. Carduner
Patented Case
View Patent ↗
Granted: Jul 2, 1996
Filed: Apr 14, 1995
Inventors
Dick Y. Leong
Alex D. Colvin
Keith R. Carduner
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.