Granted Patent
Utility
US 5,147,355 · App. 07/249,343
Cryoablation catheter and method of performing cryoablation
Inventors:
Peter L. Friedman, Paul J. Wang, Ernest G. Cravalho
Patented Case
View Patent ↗
Granted: Sep 15, 1992
Filed: Sep 23, 1988
Inventors
Peter L. Friedman
Paul J. Wang
Ernest G. Cravalho
Assignee (at issue)
THE BRIGHAM AND WOMEN'S HOSPITAL, 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.