Granted Patent
Utility
US 5,972,020 · App. 08/801,129
Surgical instrument for cardiac valve repair on the beating heart
Inventors:
Alain F. Carpentier, Charles S. Taylor
Patented Case
View Patent ↗
Granted: Oct 26, 1999
Filed: Feb 14, 1997
Inventors
Alain F. Carpentier
Charles S. Taylor
Assignee (at issue)
Cardiothoracic 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.