Granted Patent
Utility
US 4,300,944 · App. 06/002,923
Herbicidally active unsaturated esters of halogenated .alpha.-[4-(pyridyl-2'-oxy)-phenoxy]-propionic acids
Inventors:
Beat Bohner, Hermann Rempfler, Rolf Schurter
Patented Case
View Patent ↗
Granted: Nov 17, 1981
Filed: Jan 12, 1979
Inventors
Beat Bohner
Hermann Rempfler
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.