Granted Patent
Utility
US 4,602,021 · App. 06/745,456
Phenylbenzoylureas useful as pesticides
Inventors:
Odd Kristiansen, Jozef Drabek
Patented Case
View Patent ↗
Granted: Jul 22, 1986
Filed: Jun 17, 1985
Inventors
Odd Kristiansen
Jozef Drabek
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.