Granted Patent
Utility
US 6,526,871 · App. 09/939,195
Monobloc piston for diesel engines
Inventors:
Xiluo Zhu, Randall R. Gaiser
Patented Case
View Patent ↗
Granted: Mar 4, 2003
Filed: Aug 24, 2001
Inventors
Xiluo Zhu
Randall R. Gaiser
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.