Granted Patent
Utility
US 4,558,673 · App. 06/475,680
Electronic ignition system for internal combustion engines
Inventor:
Ronald D. Mackie
Patented Case
View Patent ↗
Granted: Dec 17, 1985
Filed: Mar 4, 1983
Inventor
Ronald D. Mackie
Assignee (at issue)
Nutek Corp.
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.