Granted Patent
Utility
US 4,839,264 · App. 07/124,401
Silver halide photographic material
Inventors:
Shuji Kida, Yutaka Kaneko, Kenji Kadokura, Shinji Yoshimoto, Kosaku Masuda
Patented Case
View Patent ↗
Granted: Jun 13, 1989
Filed: Nov 18, 1987
Inventors
Shuji Kida
Yutaka Kaneko
Kenji Kadokura
Shinji Yoshimoto
Kosaku Masuda
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.