Granted Patent
Utility
US 4,440,852 · App. 06/388,131
Silver halide photographic light-sensitive material containing oxonal dyes
Inventors:
Akira Onishi, Noboru Fujimori
Patented Case
View Patent ↗
Granted: Apr 3, 1984
Filed: Jun 14, 1982
Inventors
Akira Onishi
Noboru Fujimori
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.