Granted Patent
Utility
US 4,914,211 · App. 07/231,324
Pigment compositions
Inventors:
Max Jost, Abul Iqbal, Alain C. Rochat
Patented Case
View Patent ↗
Granted: Apr 3, 1990
Filed: Aug 12, 1988
Inventors
Max Jost
Abul Iqbal
Alain C. Rochat
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.