Granted Patent
Utility
US 4,978,677 · App. 07/432,297
C(29)-carbonyloxymilbemycin derivatives for controlling parasitic pets of animals and plants
Inventor:
Jean-Claude Gehret
Patented Case
View Patent ↗
Granted: Dec 18, 1990
Filed: Nov 6, 1989
Inventor
Jean-Claude Gehret
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.