Granted Patent
Utility
US 6,641,602 · App. 10/120,589
Method and device including a colo-rectal heat exchanger
Inventor:
David Balding
Patented Case
View Patent ↗
Granted: Nov 4, 2003
Filed: Apr 11, 2002
Inventor
David Balding
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.