Granted Patent
Utility
US 4,397,844 · App. 06/303,244
Antigen derivatives and processes for their preparation
Inventors:
Gerhard Baschang, Felix M. Dietrich, Roland Gisler, Albert Hartmann, Jaroslav Stanek, Lajos Tarcsay
Patented Case
View Patent ↗
Granted: Aug 9, 1983
Filed: Sep 17, 1981
Inventors
Gerhard Baschang
Felix M. Dietrich
Roland Gisler
Albert Hartmann
Jaroslav Stanek
Lajos Tarcsay
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.