Granted Patent
Utility
US 4,299,914 · App. 06/145,684
Method for forming a cyan dye image
Inventors:
Wataru Fujimatsu, Yasushi Usagawa, Osamu Sasaki, Katsumi Matsuura
Patented Case
View Patent ↗
Granted: Nov 10, 1981
Filed: May 1, 1980
Inventors
Wataru Fujimatsu
Yasushi Usagawa
Osamu Sasaki
Katsumi Matsuura
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.