Granted Patent
Utility
US 4,497,563 · App. 06/435,112
Programmed automatic exposure control
Inventors:
Kohji Matsushima, Yasutsugu Nakagawa, Michio Yagi
Patented Case
View Patent ↗
Granted: Feb 5, 1985
Filed: Oct 18, 1982
Inventors
Kohji Matsushima
Yasutsugu Nakagawa
Michio Yagi
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.