Granted Patent
Utility
US 4,342,778 · App. 06/035,048
Insecticidal (2,3-dihydro-2,2-dimethylbenzofuran-7-yloxy-N-methylcarbamoyl)-(N'-alkox ycarbamoyl)-sulphides
Inventors:
Jozef Drabek, Manfred Boger
Patented Case
View Patent ↗
Granted: Aug 3, 1982
Filed: May 1, 1979
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.