Granted Patent
Utility
US 4,919,927 · App. 07/239,071
Process for the potentiation of immunotoxins
Inventors:
Pierre Casellas, Pierre Gros, Franz Jansen
Patented Case
View Patent ↗
Granted: Apr 24, 1990
Filed: Aug 31, 1988
Inventors
Pierre Casellas
Pierre Gros
Franz Jansen
Assignee (at issue)
Sanofi
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.