Granted Patent
Utility
US 5,067,459 · App. 07/576,521
Fuel timing control
Inventor:
Thomas T. Ma
Patented Case
View Patent ↗
Granted: Nov 26, 1991
Filed: Oct 28, 1990
Inventor
Thomas T. Ma
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.