Granted Patent
Utility
US 4,621,593 · App. 06/685,927
Automotive dispensing apparatus for fuel additive
Inventors:
Vemulapalli D. N. Rao, Wallace R. Wade
Patented Case
View Patent ↗
Granted: Nov 11, 1986
Filed: Dec 24, 1984
Inventors
Vemulapalli D. N. Rao
Wallace R. Wade
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.