Granted Patent
Utility
US 4,281,059 · App. 06/100,234
Photographic material
Inventors:
Kenichi Kishi, Takashi Sasaki
Patented Case
View Patent ↗
Granted: Jul 28, 1981
Filed: Dec 4, 1979
Inventors
Kenichi Kishi
Takashi Sasaki
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.