Granted Patent
Utility
US 5,961,516 · App. 08/900,866
Device for mechanically connecting and assisting vertebrae with respect to one another
Inventor:
Henry Graf
Patented Case
View Patent ↗
Granted: Oct 5, 1999
Filed: Jul 25, 1997
Inventor
Henry Graf
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.