Granted Patent
Utility
US 5,017,211 · App. 07/362,417
Heterocyclic compounds
Inventors:
Jean Wenger, Paul Winternitz, Martin Zeller
Patented Case
View Patent ↗
Granted: May 21, 1991
Filed: May 19, 1989
Inventors
Jean Wenger
Paul Winternitz
Martin Zeller
Assignee (at issue)
Ciba-Geigy
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.