Granted Patent
Utility
US 4,518,680 · App. 06/578,551
Bleach-fixing solution and processing of light-sensitive color photographic material by use thereof
Inventors:
Shigeharu Koboshi, Masao Ishikawa, Kazuhiro Kobayashi, Toshihiko Kimura, Moeko Higuchi
Patented Case
View Patent ↗
Granted: May 21, 1985
Filed: Feb 9, 1984
Inventors
Shigeharu Koboshi
Masao Ishikawa
Kazuhiro Kobayashi
Toshihiko Kimura
Moeko Higuchi
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.