Granted Patent
Utility
US 5,649,909 · App. 08/692,299
Variable stiffness multi-lumen catheter
Inventor:
Richard Cornelius
Patented Case
View Patent ↗
Granted: Jul 22, 1997
Filed: Aug 5, 1996
Inventor
Richard Cornelius
Assignee (at issue)
Scimed Life 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.