Granted Patent
Utility
US 4,465,763 · App. 06/491,614
Process for the production of photographic color images by the silver dye bleach process
Inventors:
Eddy Forte, Mario Fryberg, Gerald Jan
Patented Case
View Patent ↗
Granted: Aug 14, 1984
Filed: May 4, 1983
Inventors
Eddy Forte
Mario Fryberg
Gerald Jan
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.