Granted Patent
Utility
US 4,547,548 · App. 06/633,424
Polymeric compounds containing piperidine and triazine radicals, process for their preparation, and their use as stabilizers for synthetic polymers
Inventor:
Giuseppe Cantatore
Patented Case
View Patent ↗
Granted: Oct 15, 1985
Filed: Jul 19, 1984
Inventor
Giuseppe Cantatore
Assignee (at issue)
Ciba-Geigy S.p.A.
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.