Granted Patent
Utility
US 6,722,320 · App. 10/268,820
Cylinder liner
Inventors:
Anh Ngoc Pham, David Y. Nov
Patented Case
View Patent ↗
Granted: Apr 20, 2004
Filed: Oct 10, 2002
Inventors
Anh Ngoc Pham
David Y. Nov
Assignee (at issue)
Federal-Mogul Worldwide, 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.