Granted Patent
Utility
US 4,827,304 · App. 07/131,081
Camera
Inventors:
Koji Watanabe, Michio Yagi, Seiichi Isoguchi, Satoshi Harada, Masami Fujita
Patented Case
View Patent ↗
Granted: May 2, 1989
Filed: Dec 9, 1987
Inventors
Koji Watanabe
Michio Yagi
Seiichi Isoguchi
Satoshi Harada
Masami Fujita
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.