Granted Patent
Utility
US 4,443,243 · App. 06/396,959
N-Phenylsulfonyl-N-triazinylureas
Inventors:
Werner Fory, Karl Gass, Willy Meyer, Rolf Schurter
Patented Case
View Patent ↗
Granted: Apr 17, 1984
Filed: Jul 9, 1982
Inventors
Werner Fory
Karl Gass
Willy Meyer
Rolf Schurter
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.