Granted Patent
Utility
US 6,210,412 · App. 08/480,904
Method for inserting frusto-conical interbody spinal fusion implants
Inventor:
Gary K. Michelson
Patented Case
View Patent ↗
Granted: Apr 3, 2001
Filed: Jun 7, 1995
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.