Granted Patent
Utility
US 6,422,465 · App. 09/728,287
Bar code gasoline blending
Inventor:
Charles Benjamin Miller
Patented Case
View Patent ↗
Granted: Jul 23, 2002
Filed: Dec 1, 2000
Inventor
Charles Benjamin Miller
Assignee (at issue)
Marathon Ashland Petroleum 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.