Granted Patent
Utility
US 5,580,865 · App. 08/043,023
2,2-disubstituted cephem sulphones
Inventors:
Marco Alpegiani, Pierluigi Bissolino, Ettore Perrone, Vincenzo Rizzo
Patented Case
View Patent ↗
Granted: Dec 3, 1996
Filed: Apr 5, 1993
Inventors
Marco Alpegiani
Pierluigi Bissolino
Ettore Perrone
Vincenzo Rizzo
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.