Granted Patent
Utility
US 6,474,870 · App. 09/412,154
Lubricated bearing assembly and method
Inventor:
Ben Xuehai Ni
Patented Case
View Patent ↗
Granted: Nov 5, 2002
Filed: Oct 5, 1999
Inventor
Ben Xuehai Ni
Assignee (at issue)
EMERSON POWER TRANSMISSION MANUFACTURING
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.