Granted Patent
Utility
US 4,104,666 · App. 05/739,850
Exposure control circuit for camera
Inventors:
Kenji Toyoda, Sakuji Watanabe
Patented Case
View Patent ↗
Granted: Aug 1, 1978
Filed: Nov 9, 1976
Inventors
Kenji Toyoda
Sakuji Watanabe
Assignee (at issue)
Nippon Kogaku K.K.
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.