Granted Patent
Utility
US 6,500,205 · App. 09/551,964
Expandable threaded arcuate interbody spinal fusion implant with cylindrical configuration during insertion
Inventor:
Gary K. Michelson
Patented Case
View Patent ↗
Granted: Dec 31, 2002
Filed: Apr 19, 2000
Inventor
Gary K. Michelson
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.