Granted Patent
Utility
US 4,944,793 · App. 06/777,899
N-phenylsulfonyl-N-triazinylureas
Inventors:
Willy Meyer, Werner Fory, Karl Gass
Patented Case
View Patent ↗
Granted: Jul 31, 1990
Filed: Sep 19, 1985
Inventors
Willy Meyer
Werner Fory
Karl Gass
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.