Granted Patent
Utility
US 5,020,516 · App. 07/175,810
Circulatory assist method and apparatus
Inventors:
James W. Biondi, Richard A. Mentelos
Patented Case
View Patent ↗
Granted: Jun 4, 1991
Filed: Mar 31, 1988
Inventors
James W. Biondi
Richard A. Mentelos
Assignee (at issue)
Cardiopulmonary Corp.
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.