Granted Patent
Utility
US 4,850,969 · App. 07/154,921
Retroperfusion catheter and tip construction for use therewith
Inventor:
Jerome Jackson
Patented Case
View Patent ↗
Granted: Jul 25, 1989
Filed: Feb 11, 1988
Inventor
Jerome Jackson
Assignee (at issue)
Retroperfusion Systems, 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.