Granted Patent
Utility
US 6,572,640 · App. 09/990,211
Method and apparatus for cardiopulmonary bypass patient temperature control
Inventors:
David Balding, William J. Worthen
Patented Case
View Patent ↗
Granted: Jun 3, 2003
Filed: Nov 21, 2001
Inventors
David Balding
William J. Worthen
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.