Granted Patent
Utility
US 6,261,311 · App. 09/363,894
Method and apparatus for treating intervertebral discs
Inventors:
Hugh J. Sharkey, Joel Saal, Jeffrey Saal, John Ashley
Patented Case
View Patent ↗
Granted: Jul 17, 2001
Filed: Jul 30, 1999
Inventors
Hugh J. Sharkey
Joel Saal
Jeffrey Saal
John Ashley
Assignee (at issue)
Oratec Interventions, 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.