Granted Patent
Utility
US 5,135,953 · App. 06/804,638
Use of acyl urea compounds for controlling endoparasites and ectoparasites of warm-blooded animals
Inventors:
Michael F. Potter, George L. Rotramel, Andrew J. Caruso, David Teh-Wei Chou, Paul A. Cain
Patented Case
View Patent ↗
Granted: Aug 4, 1992
Filed: Dec 6, 1985
Inventors
Michael F. Potter
George L. Rotramel
Andrew J. Caruso
David Teh-Wei Chou
Paul A. Cain
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.