Granted Patent
Utility
US 4,640,889 · App. 06/723,048
Light-sensitive silver halide multi-layer color photographic material
Inventors:
Kazuo Komorita, Masanobu Miyoshi, Kaoru Onodera
Patented Case
View Patent ↗
Granted: Feb 3, 1987
Filed: Apr 15, 1985
Inventors
Kazuo Komorita
Masanobu Miyoshi
Kaoru Onodera
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.