Granted Patent
Utility
US 5,409,357 · App. 08/161,629
Impeller for electric automotive fuel pump
Inventors:
DeQuan Yu, Henry W. Brockner
Patented Case
View Patent ↗
Granted: Apr 25, 1995
Filed: Dec 6, 1993
Inventors
DeQuan Yu
Henry W. Brockner
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.