Granted Patent
Utility
US 4,444,872 · App. 06/406,945
Method and material for the formation of silver halide color photographic image
Inventors:
Katsunori Kato, Ryosuke Sato
Patented Case
View Patent ↗
Granted: Apr 24, 1984
Filed: Aug 10, 1982
Inventors
Katsunori Kato
Ryosuke Sato
Assignee (at issue)
Konishiroku Photo Industry Co., Ltd.
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.