Granted Patent
Utility
US 4,895,166 · App. 07/123,713
Rotatable cutter for the lumen of a blood vesel
Inventors:
Andrew F. Farr, Herbert R. Radisch, Jr.
Patented Case
View Patent ↗
Granted: Jan 23, 1990
Filed: Nov 23, 1987
Inventors
Andrew F. Farr
Herbert R. Radisch, Jr.
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.