Granted Patent
Utility
US 4,389,993 · App. 06/158,439
Electronic ignition system
Inventors:
Emile D. Long, Keith C. Richardson
Patented Case
View Patent ↗
Granted: Jun 28, 1983
Filed: Jun 11, 1980
Inventors
Emile D. Long
Keith C. Richardson
Assignee (at issue)
ALLIED CONSULTING, INC.
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.