Granted Patent
Utility
US 4,918,097 · App. 07/317,387
Insecticides and parasiticides
Inventor:
Anthony Cornelius O'Sullivan
Patented Case
View Patent ↗
Granted: Apr 17, 1990
Filed: Mar 1, 1989
Inventor
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.