Granted Patent
Utility
US 5,484,385 · App. 08/230,832
Intra-aortic balloon catheter
Inventor:
Michael L. Rishton
Patented Case
View Patent ↗
Granted: Jan 16, 1996
Filed: Apr 21, 1994
Inventor
Michael L. Rishton
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.