Granted Patent
Utility
US 5,439,955 · App. 08/333,101
2-(benzotriazol-2-yl)-4-alkyl-6-(2-hydrox y-3-benzoyl-6-alkoxybenzyl)phenols and stabilized compositions
Inventors:
Robert A. Falk, John J. Luzzi, Gregory R. Coughlin
Patented Case
View Patent ↗
Granted: Aug 8, 1995
Filed: Nov 1, 1994
Inventors
Robert A. Falk
John J. Luzzi
Gregory R. Coughlin
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.