Granted Patent
Utility
US 6,652,584 · App. 10/008,305
Expandable threaded arcuate interbody spinal fusion implant with lordotic configuration during insertion
Inventor:
Gary K. Michelson
Patented Case
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Granted: Nov 25, 2003
Filed: Nov 6, 2001
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.