Granted Patent
Utility
US 5,899,908 · App. 08/901,950
Spinal drill tube guide
Inventors:
Stephen D. Kuslich, Douglas W. Kohrs
Patented Case
View Patent ↗
Granted: May 4, 1999
Filed: Jul 29, 1997
Inventors
Stephen D. Kuslich
Douglas W. Kohrs
Assignee (at issue)
Sulzer Spine-Tech 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.