Granted Patent
Utility
US 5,882,677 · App. 08/941,746
Iontophoretic patch with hydrogel reservoir
Inventor:
Gary Kupperblatt
Patented Case
View Patent ↗
Granted: Mar 16, 1999
Filed: Sep 30, 1997
Inventor
Gary Kupperblatt
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.