Granted Patent
Utility
US 4,967,037 · App. 07/380,138
Driving circuit for a capacitor discharge ignition system
Inventor:
William J. Roberts
Patented Case
View Patent ↗
Granted: Oct 30, 1990
Filed: Jul 14, 1989
Inventor
William J. Roberts
Assignee (at issue)
Prestolite Electric Ltd.
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.