Granted Patent
Utility
US 6,752,590 · App. 10/255,332
Water pump and impeller therefor
Inventor:
John A. Serio
Patented Case
View Patent ↗
Granted: Jun 22, 2004
Filed: Sep 26, 2002
Inventor
John A. Serio
Assignee (at issue)
International Engine Intellectual Property Company, 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.