Granted Patent
Utility
US 5,891,462 · App. 08/869,982
Composition for transdermal administration of an estrogen
Inventor:
Dario N. Carrara
Patented Case
View Patent ↗
Granted: Apr 6, 1999
Filed: Jun 5, 1997
Inventor
Dario N. Carrara
Assignee (at issue)
Permatec N.V.
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.