Granted Patent
Utility
US 6,358,254 · App. 09/659,180
Method and implant for expanding a spinal canal
Inventor:
D. Greg Anderson
Patented Case
View Patent ↗
Granted: Mar 19, 2002
Filed: Sep 11, 2000
Inventor
D. Greg Anderson
Assignee (at issue)
D. Greg Anderson
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.