Granted Patent
Utility
US 4,436,935 · App. 06/291,008
Thiocarbamoylalkoxyphenylureas
Inventors:
Dagmar Berrer, Georg Pissiotas, Otto Rohr
Patented Case
View Patent ↗
Granted: Mar 13, 1984
Filed: Aug 7, 1981
Inventors
Dagmar Berrer
Georg Pissiotas
Otto Rohr
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.