Granted Patent
Utility
US 6,481,895 · App. 09/760,875
Flange bearing
Inventors:
Qingmin Yang, Robert L. Stone
Patented Case
View Patent ↗
Granted: Nov 19, 2002
Filed: Jan 16, 2001
Inventors
Qingmin Yang
Robert L. Stone
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.