Granted Patent
Utility
US 4,675,330 · App. 06/860,266
Pleuromutilin derivatives process for their preparation and their use
Inventors:
Heinz Berner, Hermann Vyplel
Patented Case
View Patent ↗
Granted: Jun 23, 1987
Filed: May 6, 1986
Inventors
Heinz Berner
Hermann Vyplel
Assignee (at issue)
Sandoz AG
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.