Granted Patent
Utility
US 4,904,650 · App. 07/225,674
Substituted androsta-1,4-diene-3,17-diones
Inventors:
Franco Buzzetti, Natale Barbugian, Paolo Lombardi, Enrico di Salle
Patented Case
View Patent ↗
Granted: Feb 27, 1990
Filed: Jul 26, 1988
Inventors
Franco Buzzetti
Natale Barbugian
Paolo Lombardi
Enrico di Salle
Assignee (at issue)
Farmitalia Carlo Erba S.p.A.
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.