Granted Patent
Utility
US 4,847,258 · App. 07/086,339
Substituted benzoylphenylureas compounds useful as pesticides
Inventors:
Elmar Sturm, Robert W. Lang, Odd Kristiansen
Patented Case
View Patent ↗
Granted: Jul 11, 1989
Filed: Aug 17, 1987
Inventors
Elmar Sturm
Robert W. Lang
Odd Kristiansen
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.