Granted Patent
Utility
US 5,858,080 · App. 08/863,311
Bismuth vanadate pigments
Inventor:
Philippe Bugnon
Patented Case
View Patent ↗
Granted: Jan 12, 1999
Filed: May 27, 1997
Inventor
Philippe Bugnon
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.