Granted Patent
Utility
US 5,797,935 · App. 08/721,597
Balloon activated forced concentrators for incising stenotic segments
Inventor:
Peter Barath
Patented Case
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Granted: Aug 25, 1998
Filed: Sep 26, 1996
Inventor
Peter Barath
Assignee (at issue)
Interventional Technologies
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.