Granted Patent
Utility
US 5,797,906 · App. 08/431,368
Retrograde tissue splitter and method
Inventors:
David Rhum, Rodney E. Wells, Joshua Makower
Patented Case
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Granted: Aug 25, 1998
Filed: Apr 28, 1995
Inventors
David Rhum
Rodney E. Wells
Joshua Makower
Assignee (at issue)
Valleylab, 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.