Granted Patent
Utility
US 4,886,793 · App. 07/022,247
Penem derivatives
Inventors:
Ettore Perrone, Marco Alpegiani, Angelo Bedeschi, Franco Zarini, Costantino della Bruna, Giovanni Franceschi
Patented Case
View Patent ↗
Granted: Dec 12, 1989
Filed: Mar 5, 1987
Inventors
Ettore Perrone
Marco Alpegiani
Angelo Bedeschi
Franco Zarini
Costantino della Bruna
Giovanni Franceschi
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.