Granted Patent
Utility
US 6,428,534 · App. 09/510,903
Cryogenic angioplasty catheter
Inventors:
James Joye, Richard S. Williams, Ronald Williams
Patented Case
View Patent ↗
Granted: Aug 6, 2002
Filed: Feb 23, 2000
Inventors
James Joye
Richard S. Williams
Ronald Williams
Assignee (at issue)
Cryovascular Systems, 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.