Granted Patent
Utility
US 4,840,613 · App. 07/186,560
Protective sheath for catheter assembly
Inventor:
Daniel J. Balbierz
Patented Case
View Patent ↗
Granted: Jun 20, 1989
Filed: Apr 27, 1988
Inventor
Daniel J. Balbierz
Assignee (at issue)
Menlo Care, 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.