Granted Patent
Utility
US 5,668,206 · App. 08/466,520
Liquid antioxidants as stabilizers
Inventors:
Paul Dubs, Roger Martin, Samuel Evans
Patented Case
View Patent ↗
Granted: Sep 16, 1997
Filed: Jun 6, 1995
Inventors
Paul Dubs
Roger Martin
Samuel Evans
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.