Granted Patent
Utility
US 6,174,128 · App. 09/249,569
Impeller for electric automotive fuel pump
Inventor:
DeQuan Yu
Patented Case
View Patent ↗
Granted: Jan 16, 2001
Filed: Feb 8, 1999
Inventor
DeQuan Yu
Assignee (at issue)
FORD GLOBAL TECHNOLOGIES, 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.