Granted Patent
Utility
US 6,688,844 · App. 10/045,739
Automotive fuel pump impeller
Inventor:
DeQuan Yu
Patented Case
View Patent ↗
Granted: Feb 10, 2004
Filed: Oct 29, 2001
Inventor
DeQuan Yu
Assignee (at issue)
Visteon Global Technologies, Inc.
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.