Granted Patent
Utility
US 4,374,922 · App. 06/282,258
Method for the formation of a dye image
Inventors:
Keiji Ohbayashi, Akihiko Miyamoto, Masaru Iwagaki, Makoto Kajiwara
Patented Case
View Patent ↗
Granted: Feb 22, 1983
Filed: Jul 10, 1981
Inventors
Keiji Ohbayashi
Akihiko Miyamoto
Masaru Iwagaki
Makoto Kajiwara
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.