Granted Patent
Utility
US 6,383,188 · App. 09/782,176
Expandable reamer
Inventors:
Stephen D. Kuslich, Francis C. Peterson, Todd Bjork, Joseph Gleason, Rodney Rogstad
Patented Case
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Granted: May 7, 2002
Filed: Feb 13, 2001
Inventors
Stephen D. Kuslich
Francis C. Peterson
Todd Bjork
Joseph Gleason
Rodney Rogstad
Assignee (at issue)
Spineology 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.