Granted Patent
Utility
US 4,696,945 · App. 06/885,066
13.beta.-milbemycin derivatives for controlling ecto- and endoparasites of plants and animals
Inventors:
Bruno Frei, Anthony Cornelius O'Sullivan
Patented Case
View Patent ↗
Granted: Sep 29, 1987
Filed: Jul 14, 1986
Inventors
Bruno Frei
Anthony Cornelius O'Sullivan
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.