Granted Patent
Utility
US 4,400,462 · App. 06/268,776
Method for the formation of photographic images
Inventors:
Kouzi Ono, Mikio Kawasaki, Mariko Natori, Eiichi Sakamoto
Patented Case
View Patent ↗
Granted: Aug 23, 1983
Filed: Jun 1, 1981
Inventors
Kouzi Ono
Mikio Kawasaki
Mariko Natori
Eiichi Sakamoto
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.