Granted Patent
Utility
US 4,822,528 · App. 07/086,608
4-substituted 6-alkylidenandrosteine-3,17-dione derivatives and process for their preparation
Inventors:
Maristella Colombo, Franco Buzzetti, Enrico di Salle, Paolo Lombardi
Patented Case
View Patent ↗
Granted: Apr 18, 1989
Filed: Aug 18, 1987
Inventors
Maristella Colombo
Franco Buzzetti
Enrico di Salle
Paolo Lombardi
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.