Granted Patent
Utility
US 4,740,235 · App. 06/844,407
3-fluoropyridyl-2-oxy-phenoxy derivatives having herbicidal activity
Inventors:
Rolf Schurter, Peter J. Diel
Patented Case
View Patent ↗
Granted: Apr 26, 1988
Filed: Mar 26, 1986
Inventors
Rolf Schurter
Peter J. Diel
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.