Granted Patent
Utility
US 6,264,656 · App. 09/075,517
Threaded spinal implant
Inventor:
Gary K. Michelson
Patented Case
View Patent ↗
Granted: Jul 24, 2001
Filed: May 8, 1998
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.