Granted Patent
Utility
US 5,189,084 · App. 07/841,907
Process for incorporating o-hydroxyphenyl-s-triazines in organic polymers
Inventors:
Jean-Luc Birbaum, Jean Rody, Mario Slongo, Andreas Valet
Patented Case
View Patent ↗
Granted: Feb 23, 1993
Filed: Feb 26, 1992
Inventors
Jean-Luc Birbaum
Jean Rody
Mario Slongo
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.