Granted Patent
Utility
US 4,476,321 · App. 06/423,344
O-Substituted phenylsulfonamides
Inventors:
Willy Meyer, Werner Fory
Patented Case
View Patent ↗
Granted: Oct 9, 1984
Filed: Sep 24, 1982
Inventors
Willy Meyer
Werner Fory
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.