Granted Patent
Utility
US 6,068,454 · App. 09/055,427
Fuel pump with helical impeller
Inventors:
Robert D. Gaston, Beverly Jane Wozniak, DeQuan Yu
Patented Case
View Patent ↗
Granted: May 30, 2000
Filed: Apr 6, 1998
Inventors
Robert D. Gaston
Beverly Jane Wozniak
DeQuan Yu
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.