Granted Patent
Utility
US 4,585,874 · App. 06/558,629
Process for preparing penem derivatives
Inventors:
Marco Alpegiani, Angelo Bedeschi, Maurizio Foglio, Giovanni Franceschi, Ettore Perrone
Patented Case
View Patent ↗
Granted: Apr 29, 1986
Filed: Dec 6, 1983
Inventors
Marco Alpegiani
Angelo Bedeschi
Maurizio Foglio
Giovanni Franceschi
Ettore Perrone
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.