Granted Patent
Utility
US 5,891,140 · App. 08/773,298
Electrosurgical device for harvesting a vessel especially the internal mammary artery for coronary artery bypass grafting
Inventors:
Richard S. Ginn, Charles S. Taylor, Michael D. Hooven
Patented Case
View Patent ↗
Granted: Apr 6, 1999
Filed: Dec 23, 1996
Inventors
Richard S. Ginn
Charles S. Taylor
Michael D. Hooven
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.