Granted Patent
Utility
US 5,224,945 · App. 07/820,089
Compressible/expandable atherectomy cutter
Inventor:
Edward Pannek
Patented Case
View Patent ↗
Granted: Jul 6, 1993
Filed: Jan 13, 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.