Granted Patent
Utility
US 5,039,722 · App. 07/454,083
Piperidine-triazine compounds for use as stabilizers for organic materials
Inventors:
Giuseppe Cantatore, Valerio Borzatta
Patented Case
View Patent ↗
Granted: Aug 13, 1991
Filed: Dec 21, 1989
Inventors
Giuseppe Cantatore
Valerio Borzatta
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.