Granted Patent
Utility
US 6,537,271 · App. 09/611,240
Balloon cryogenic catheter
Inventors:
David Murray, Hong Li
Patented Case
View Patent ↗
Granted: Mar 25, 2003
Filed: Jul 6, 2000
Inventors
David Murray
Hong Li
Assignee (at issue)
CryoGen, 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.