Granted Patent
Utility
US 4,906,678 · App. 07/264,560
1,2,2,6,6-Pentamethyl-4-piperidylaminotriazine derivatives and their use as stabilizers
Inventors:
Giuseppe Cantatore, Francois Gugumus
Patented Case
View Patent ↗
Granted: Mar 6, 1990
Filed: Oct 31, 1988
Inventors
Giuseppe Cantatore
Francois Gugumus
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.