Granted Patent
Utility
US 6,575,979 · App. 09/640,222
Method and apparatus for providing posterior or anterior trans-sacral access to spinal vertebrae
Inventor:
Andrew H. Cragg
Patented Case
View Patent ↗
Granted: Jun 10, 2003
Filed: Aug 16, 2000
Inventor
Andrew H. Cragg
Assignee (at issue)
Axiamed, Inc.
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.