Granted Patent
Utility
US 4,299,959 · App. 06/008,703
Fluorescent pigments
Inventor:
Nalin Binduprasad Desai
Patented Case
View Patent ↗
Granted: Nov 10, 1981
Filed: Jan 31, 1979
Inventor
Nalin Binduprasad Desai
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.