Granted Patent
Utility
US 5,015,683 · App. 07/479,909
Bis(1-hydrocarbyloxy-2,2,6,6-tetramethylpiperidin-4-yl)-amine derivatives and stabilized compositions
Inventors:
James P. Galbo, Ramanathan Ravichandran
Patented Case
View Patent ↗
Granted: May 14, 1991
Filed: Feb 14, 1990
Inventors
James P. Galbo
Ramanathan Ravichandran
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.