Granted Patent
Utility
US 5,971,955 · App. 08/963,742
Double balloon catheter with ultrasonic probe
Inventors:
Cornelis Philipus Nap, Wilhelmus Petrus Martinus Maria van Erp
Patented Case
View Patent ↗
Granted: Oct 26, 1999
Filed: Nov 4, 1997
Inventors
Cornelis Philipus Nap
Wilhelmus Petrus Martinus Maria van Erp
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.