Granted Patent
Utility
US 4,305,957 · App. 06/172,907
N-(2-Isobutyronitrilesulfenyl)-N-methyl carbamates and their use in combating insect pests
Inventors:
Jozef Drabek, Manfred Boger
Patented Case
View Patent ↗
Granted: Dec 15, 1981
Filed: Jul 28, 1980
Inventors
Jozef Drabek
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.