Granted Patent
Utility
US 5,529,623 · App. 08/314,018
Pigmentary solid solutions of pyrrolo[3,4-c]pyrroles and quinacridones
Inventors:
Shivakumar Basalingappa Hendi, James B. Ganci, Edward E. Jaffe
Patented Case
View Patent ↗
Granted: Jun 25, 1996
Filed: Sep 28, 1994
Inventors
Shivakumar Basalingappa Hendi
James B. Ganci
Edward E. Jaffe
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.