Granted Patent
Utility
US 4,983,395 · App. 07/326,536
Device for administering an active agent to the skin or mucosa
Inventors:
Yunik Chang, Dinesh C. Patel, Charles D. Ebert
Patented Case
View Patent ↗
Granted: Jan 8, 1991
Filed: Mar 21, 1989
Inventors
Yunik Chang
Dinesh C. Patel
Charles D. Ebert
Assignee (at issue)
TheraTech, 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.