Granted Patent
Utility
US 4,744,216 · App. 06/921,028
Electrical ignition device for regeneration of a particulate trap
Inventors:
V. Durga Nageswar Rao, Michael Aimone
Patented Case
View Patent ↗
Granted: May 17, 1988
Filed: Oct 20, 1986
Inventors
V. Durga Nageswar Rao
Michael Aimone
Assignee (at issue)
Ford Motor 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.