Granted Patent
Utility
US 6,575,981 · App. 09/498,426
Methods and instrumentation for vertebral interbody fusion
Inventors:
Lawrence M. Boyd, Eddie F. Ray, III, Bradley T. Estes, J. Kenneth Burkus, John D. Dorchak
Patented Case
View Patent ↗
Granted: Jun 10, 2003
Filed: Feb 4, 2000
Inventors
Lawrence M. Boyd
Eddie F. Ray, III
Bradley T. Estes
J. Kenneth Burkus
John D. Dorchak
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.