Granted Patent
Utility
US 6,814,756 · App. 09/574,858
Expandable threaded arcuate interbody spinal fusion implant with lordotic configuration during insertion
Inventor:
Gary K. Michelson
Patented Case
View Patent ↗
Granted: Nov 9, 2004
Filed: May 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.