Granted Patent
Utility
US 4,479,821 · App. 06/458,695
N-Phenylsulfonyl-N'-triazinylureas
Inventors:
Willy Meyer, Werner F/o/ ry
Patented Case
View Patent ↗
Granted: Oct 30, 1984
Filed: Jan 17, 1983
Inventors
Willy Meyer
Werner F/o/ ry
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.