Granted Patent
Utility
US 4,530,321 · App. 06/570,064
Glow plug control circuit
Inventors:
LaVerne A. Caron, Edward F. Handley
Patented Case
View Patent ↗
Granted: Jul 23, 1985
Filed: Jan 12, 1984
Inventors
LaVerne A. Caron
Edward F. Handley
Assignee (at issue)
International Harvester 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.