Granted Patent
Utility
US 5,229,512 · App. 07/685,367
Compounds formed from o-hydroxyphenyl-1,3,5-triazines and sterically hindered amines
Inventors:
Mario Slongo, Jean-Luc Birbaum, Jean Rody, Andreas Valet
Patented Case
View Patent ↗
Granted: Jul 20, 1993
Filed: Apr 15, 1991
Inventors
Mario Slongo
Jean-Luc Birbaum
Jean Rody
Andreas Valet
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.