Granted Patent
Utility
US 4,765,332 · App. 06/885,139
Pullback atherectomy catheter system
Inventors:
Robert E. Fischell, Tim A. Fischell
Patented Case
View Patent ↗
Granted: Aug 23, 1988
Filed: Jul 14, 1986
Inventors
Robert E. Fischell
Tim A. Fischell
Assignee (at issue)
Medi Innovations Inc.
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.