Granted Patent
Utility
US 4,421,090 · App. 06/435,681
Fuel processor apparatus for diesel engine powered vehicles
Inventor:
Leland L. Davis
Patented Case
View Patent ↗
Granted: Dec 20, 1983
Filed: Oct 21, 1982
Inventor
Leland L. Davis
Assignee (at issue)
DAVCO, LLC
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.