Granted Patent
Utility
US 4,808,616 · App. 06/882,364
6-substituted androsta-1,4-diene-3,17-diones
Inventors:
Franco Buzzetti, Natale Barbugian, Paolo Lombardi, Enrico di Salle
Patented Case
View Patent ↗
Granted: Feb 28, 1989
Filed: Jul 7, 1986
Inventors
Franco Buzzetti
Natale Barbugian
Paolo Lombardi
Enrico di Salle
Assignee (at issue)
Farmitalia Carlo Erba S.r.l.
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.