Granted Patent
Utility
US 4,897,424 · App. 07/205,260
Aryloxyphenylthioureas, aryloxyphenylisothioureas and aryloxyphenylcarbodiimides and pesticidal compositions containing them
Inventors:
Manfred Boger, Jozef Drabek, Josef Ehrenfreund
Patented Case
View Patent ↗
Granted: Jan 30, 1990
Filed: Jun 9, 1988
Inventors
Manfred Boger
Jozef Drabek
Josef Ehrenfreund
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.