Granted Patent
Utility
US 5,409,462 · App. 08/176,129
Cyst puncture catheter assembly
Inventor:
Donald A. Ross
Patented Case
View Patent ↗
Granted: Apr 25, 1995
Filed: Dec 30, 1993
Inventor
Donald A. Ross
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.