Granted Patent
Utility
US 4,969,470 · App. 07/416,968
Heart analysis using pressure-controlled intermittent coronary sinus occlusion
Inventors:
Werner Mohl, Marc Joshua Tolkoff
Patented Case
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Granted: Nov 13, 1990
Filed: Oct 4, 1989
Inventors
Werner Mohl
Marc Joshua Tolkoff
Assignee (at issue)
Boston Scientific Limited
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.