Granted Patent
Utility
US 5,983,133 · App. 08/939,692
Iontophoresis system with voltage step-up circuit
Inventors:
Kenneth E. Garde, Ronald J. Flower
Patented Case
View Patent ↗
Granted: Nov 9, 1999
Filed: Sep 29, 1997
Inventors
Kenneth E. Garde
Ronald J. Flower
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.