Granted Patent
Utility
US 6,758,863 · App. 10/317,660
Vertically expanding intervertebral body fusion device
Inventors:
Bradley T. Estes, Andrew M. Dickson
Patented Case
View Patent ↗
Granted: Jul 6, 2004
Filed: Dec 12, 2002
Inventors
Bradley T. Estes
Andrew M. Dickson
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.