Granted Patent
Utility
US 4,935,238 · App. 06/785,930
Antibiotic A 40926 complex and its pure factors PA, PB, A, B and B.sub.0
Inventors:
Enrico Selva, Grazia Beretta, Luciano Gastaldo, Angelo Borghi, Beth P. Goldstein, Giovanni Cassani, Vittorio Arioli, Francesco Parenti
Patented Case
View Patent ↗
Granted: Jun 19, 1990
Filed: Oct 9, 1985
Inventors
Enrico Selva
Grazia Beretta
Luciano Gastaldo
Angelo Borghi
Beth P. Goldstein
Giovanni Cassani
Vittorio Arioli
Francesco Parenti
Assignee (at issue)
Gruppo Lepetit 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.