Granted Patent
Utility
US 4,973,702 · App. 07/310,178
2-(2-hydroxyphenyl)-benztriazoles
Inventors:
Jean Rody, Mario Slongo
Patented Case
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Granted: Nov 27, 1990
Filed: Feb 13, 1989
Inventors
Jean Rody
Mario Slongo
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.