Granted Patent
Utility
US 4,277,288 · App. 06/081,235
Fluidized granulation of pigments using organic granulating assistant
Inventors:
SIMON LAWRENCE, James M. Hossack
Patented Case
View Patent ↗
Granted: Jul 7, 1981
Filed: Oct 2, 1979
Inventors
SIMON LAWRENCE
James M. Hossack
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.