Granted Patent
Utility
US 4,459,977 · App. 06/350,381
Coronary sinus retroperfusion apparatus for the treatment of myocardial ischemia
Inventors:
Veronique Pizon, Jean-Christian Farcot
Patented Case
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Granted: Jul 17, 1984
Filed: Feb 19, 1982
Inventors
Veronique Pizon
Jean-Christian Farcot
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.