Granted Patent
Utility
US 4,954,484 · App. 07/172,616
Parasiticides and insecticides
Inventor:
Jean-Claude Gehret
Patented Case
View Patent ↗
Granted: Sep 4, 1990
Filed: Mar 24, 1988
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.