Granted Patent
Utility
US 5,350,449 · App. 08/180,020
Coating materials stabilized against light-induced degradation
Inventors:
Andreas Valet, Jean-Luc Birbaum, Mario Slongo
Patented Case
View Patent ↗
Granted: Sep 27, 1994
Filed: Jan 11, 1994
Inventors
Andreas Valet
Jean-Luc Birbaum
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.