Granted Patent
Utility
US 5,180,762 · App. 07/733,484
Stabiliser composition for polypropylene, comprising triazine compounds containing piperidine groups, and metal compounds
Inventor:
Paola Canova
Patented Case
View Patent ↗
Granted: Jan 19, 1993
Filed: Jul 22, 1991
Inventor
Paola Canova
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.