Granted Patent
Utility
US 5,176,693 · App. 07/881,426
Balloon expandable atherectomy cutter
Inventor:
Edward Pannek
Patented Case
View Patent ↗
Granted: Jan 5, 1993
Filed: May 11, 1992
Inventor
Edward Pannek
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.