Granted Patent
Utility
US 6,136,240 · App. 09/219,097
Center plate assembly bearing liner
Inventors:
Michael K. Burke, Richard F. Murphy
Patented Case
View Patent ↗
Granted: Oct 24, 2000
Filed: Dec 22, 1998
Inventors
Michael K. Burke
Richard F. Murphy
Assignee (at issue)
ZefTek, 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.