Granted Patent
Utility
US 4,980,349 · App. 07/143,170
Sulphonamides derived from diarylmethanes, the processes for preparing them and pharmaceutical compositions containing them
Inventors:
Pierre Roger, Jean-Paul Fournier, Alain Martin, Jean Choay
Patented Case
View Patent ↗
Granted: Dec 25, 1990
Filed: Nov 12, 1987
Inventors
Pierre Roger
Jean-Paul Fournier
Alain Martin
Jean Choay
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.