Granted Patent
Utility
US 4,814,260 · App. 07/062,871
Method of storing photographic processing solution in a package having specific oxygen permeability
Inventors:
Shigeharu Koboshi, Kazuyoshi Miyaoka, Masahiko Kon
Patented Case
View Patent ↗
Granted: Mar 21, 1989
Filed: Jun 16, 1987
Inventors
Shigeharu Koboshi
Kazuyoshi Miyaoka
Masahiko Kon
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.