Granted Patent
Utility
US 5,489,683 · App. 08/219,049
Piperidine-triazine compounds suitable for use as stabilisers for organic materials
Inventors:
Valerio Borzatta, Graziano Vignali, Fabrizio Guizzardi
Patented Case
View Patent ↗
Granted: Feb 6, 1996
Filed: Mar 28, 1994
Inventors
Valerio Borzatta
Graziano Vignali
Fabrizio Guizzardi
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.