Granted Patent
Utility
US 4,359,521 · App. 06/105,174
Light-sensitive color photographic material
Inventors:
Mario Fryberg, Remon Hagen, John G. V. Scott
Patented Case
View Patent ↗
Granted: Nov 16, 1982
Filed: Dec 19, 1979
Inventors
Mario Fryberg
Remon Hagen
John G. V. Scott
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.