Granted Patent
Utility
US 4,986,807 · App. 07/299,147
Atherectomy cutter with radially projecting blade
Inventor:
Andrew F. Farr
Patented Case
View Patent ↗
Granted: Jan 22, 1991
Filed: Jan 23, 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.