Granted Patent
Utility
US 6,709,448 · App. 10/120,587
Open core heat exchange catheter, system and method
Inventors:
Blair D. Walker, Wayne A. Noda
Patented Case
View Patent ↗
Granted: Mar 23, 2004
Filed: Apr 11, 2002
Inventors
Blair D. Walker
Wayne A. Noda
Assignee (at issue)
Alsius Corporation
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.