Granted Patent
Utility
US 4,358,439 · App. 06/216,353
Cyclooctapeptides
Inventors:
Peter Sieber, Bruno Kamber, Hans Rink
Patented Case
View Patent ↗
Granted: Nov 9, 1982
Filed: Dec 15, 1980
Inventors
Peter Sieber
Bruno Kamber
Hans Rink
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.