Granted Patent
Utility
US 6,401,680 · App. 09/708,942
Bolted articulated piston
Inventors:
Xiluo Zhu, Duraid Mahrus, Alan S. Brown
Patented Case
View Patent ↗
Granted: Jun 11, 2002
Filed: Nov 8, 2000
Inventors
Xiluo Zhu
Duraid Mahrus
Alan S. Brown
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.