Granted Patent
Utility
US 4,483,707 · App. 06/462,257
Phenylamino-oxo-acetic acids and esters thereof as antidotes for protecting cultivated plants from the phytotoxic action of aggressive herbicides
Inventors:
Werner Breitenstein, Werner Fory, Robert Nyfeler, Manfred Boger
Patented Case
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Granted: Nov 20, 1984
Filed: Jan 31, 1983
Inventors
Werner Breitenstein
Werner Fory
Robert Nyfeler
Manfred Boger
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.