Granted Patent
Utility
US 5,268,179 · App. 07/837,456
Ultrasonically sealed transdermal drug delivery systems
Inventor:
Michael Rudella
Patented Case
View Patent ↗
Granted: Dec 7, 1993
Filed: Feb 14, 1992
Inventor
Michael Rudella
Assignee (at issue)
Ciba-Geigy
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.