Granted Patent
Utility
US 6,206,921 · App. 09/255,372
Method of replacing nucleus pulposus and repairing the intervertebral disk
Inventors:
Peter A. Guagliano, Anthony C. Ross
Patented Case
View Patent ↗
Granted: Mar 27, 2001
Filed: Feb 22, 1999
Inventors
Peter A. Guagliano
Anthony C. Ross
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.