Granted Patent
Utility
US 5,865,721 · App. 08/658,386
Intra-aortic balloon catheters
Inventors:
Robert R. Andrews, William Edelman, Joseph A. Levendusky, Robert L. O'Brien
Patented Case
View Patent ↗
Granted: Feb 2, 1999
Filed: Jun 5, 1996
Inventors
Robert R. Andrews
William Edelman
Joseph A. Levendusky
Robert L. O'Brien
Assignee (at issue)
C. R. Bard, 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.