Granted Patent
Utility
US 5,019,089 · App. 07/447,368
Atherectomy advancing probe and method of use
Inventor:
Andrew F. Farr
Patented Case
View Patent ↗
Granted: May 28, 1991
Filed: Dec 7, 1989
Inventor
Andrew F. Farr
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.