Granted Patent
Utility
US 6,436,099 · App. 09/421,976
Adjustable spinal tether
Inventors:
Troy D. Drewry, Michael C. Sherman, David L. Brumfield
Patented Case
View Patent ↗
Granted: Aug 20, 2002
Filed: Oct 20, 1999
Inventors
Troy D. Drewry
Michael C. Sherman
David L. Brumfield
Assignee (at issue)
SDGI, LLC
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.