Granted Patent
Utility
US 5,071,761 · App. 07/381,444
Hybrid interferons
Inventors:
François Meyer, Albert Hinnen, Andreas Meister, Markus G. Grutter, Sefik Alkan
Patented Case
View Patent ↗
Granted: Dec 10, 1991
Filed: Jul 18, 1989
Inventors
François Meyer
Albert Hinnen
Andreas Meister
Markus G. Grutter
Sefik Alkan
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.