Granted Patent
Utility
US 4,950,229 · App. 07/412,056
Apparatus for an electrode used for iontophoresis
Inventor:
Burton H. Sage, Jr.
Patented Case
View Patent ↗
Granted: Aug 21, 1990
Filed: Sep 25, 1989
Inventor
Burton H. Sage, Jr.
Assignee (at issue)
BECTON, DICKINSON AND COMPANY
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.