Granted Patent
Utility
US 4,595,677 · App. 06/554,735
Substituted tetrapeptides
Inventors:
Bernhard Riniker, Peter Buhlmayer, Walter Fuhrer
Patented Case
View Patent ↗
Granted: Jun 17, 1986
Filed: Nov 23, 1983
Inventors
Bernhard Riniker
Peter Buhlmayer
Walter Fuhrer
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.