Granted Patent
Utility
US 5,139,778 · App. 07/547,647
Antibiotic GE 2270 factors A.sub.1, A.sub.2, A.sub.3 and H
Inventors:
Enrico Selva, Paolo Tavecchia
Patented Case
View Patent ↗
Granted: Aug 18, 1992
Filed: Jul 2, 1990
Inventors
Enrico Selva
Paolo Tavecchia
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.