Granted Patent
Utility
US 5,482,547 · App. 08/191,572
Silane-coated organic pigments
Inventors:
Philippe Bugnon, Jean Allaz
Patented Case
View Patent ↗
Granted: Jan 9, 1996
Filed: Feb 3, 1994
Inventors
Philippe Bugnon
Jean Allaz
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.