Granted Patent
Utility
US 4,456,361 · App. 06/550,052
Program type exposure controlling device
Inventor:
Kazuo Shiozawa
Patented Case
View Patent ↗
Granted: Jun 26, 1984
Filed: Nov 7, 1983
Inventor
Kazuo Shiozawa
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.