Granted Patent
Utility
US 6,491,013 · App. 09/957,703
Closed gallery piston having reinforced oil hole
Inventors:
Randall R. Gaiser, Carmo Ribeiro, Eduardo Matsuo
Patented Case
View Patent ↗
Granted: Dec 10, 2002
Filed: Sep 19, 2001
Inventors
Randall R. Gaiser
Carmo Ribeiro
Eduardo Matsuo
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.