Granted Patent
Utility
US 4,623,480 · App. 06/688,090
Synergistic mixtures of nickel-containing 2,2'-thiobis(alkylphenols) and pyrazolates
Inventor:
Francois Gugumus
Patented Case
View Patent ↗
Granted: Nov 18, 1986
Filed: Dec 31, 1984
Inventor
Francois Gugumus
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.