Granted Patent
Utility
US 5,709,653 · App. 08/690,330
Photodynamic therapy balloon catheter with microporous membrane
Inventor:
James Leone
Patented Case
View Patent ↗
Granted: Jan 20, 1998
Filed: Jul 25, 1996
Inventor
James Leone
Assignee (at issue)
CORDIS 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.