Granted Patent
Utility
US 4,322,337 · App. 06/217,370
Polyalkylpiperidine derivatives of s-triazines as stabilizers
Inventor:
Jean Rody
Patented Case
View Patent ↗
Granted: Mar 30, 1982
Filed: Dec 17, 1980
Inventor
Jean Rody
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.