Granted Patent
Utility
US 6,447,544 · App. 09/412,090
Lordotic interbody spinal fusion implants
Inventor:
Gary K. Michelson
Patented Case
View Patent ↗
Granted: Sep 10, 2002
Filed: Oct 4, 1999
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.