Granted Patent
Utility
US 5,489,271 · App. 08/219,120
Convertible catheter
Inventor:
Erik Andersen
Patented Case
View Patent ↗
Granted: Feb 6, 1996
Filed: Mar 29, 1994
Inventor
Erik Andersen
Assignee (at issue)
Boston Scientific Limited
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.