Granted Patent
Utility
US 5,216,016 · App. 07/848,475
Insecticidal composition
Inventors:
William Vorley, Friedrich Karrer, Francois Bourgeois
Patented Case
View Patent ↗
Granted: Jun 1, 1993
Filed: Mar 6, 1992
Inventors
William Vorley
Friedrich Karrer
Francois Bourgeois
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.