Granted Patent
Utility
US 5,776,199 · App. 08/850,654
Artificial spinal fusion implants
Inventor:
Gary K. Michelson
Patented Case
View Patent ↗
Granted: Jul 7, 1998
Filed: May 2, 1997
Inventor
Gary K. Michelson
Assignee (at issue)
Sofamor Danek Properties, 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.