Granted Patent
Utility
US 5,649,507 · App. 08/455,487
Corona discharge ignition system
Inventors:
Daniel J. Gregoire, Robin J. Harvey, Franklin A. Dolezal
Patented Case
View Patent ↗
Granted: Jul 22, 1997
Filed: May 31, 1995
Inventors
Daniel J. Gregoire
Robin J. Harvey
Franklin A. Dolezal
Assignee (at issue)
Hughes Aircraft 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.