Granted Patent
Utility
US 5,696,261 · App. 08/555,353
Piperidine-triazine compounds suitable for use as stabilisers for organic materials
Inventors:
Valerio Borzatta, Graziano Vignali, Fabrizio Guizzardi
Patented Case
View Patent ↗
Granted: Dec 9, 1997
Filed: Nov 8, 1995
Inventors
Valerio Borzatta
Graziano Vignali
Fabrizio Guizzardi
Assignee (at issue)
Ciba Specialty Chemicals Corporation
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.