Granted Patent
Utility
US 4,357,090 · App. 06/303,576
Exposure control apparatus for camera with interchangeable lens
Inventor:
Yoshitaka Araki
Patented Case
View Patent ↗
Granted: Nov 2, 1982
Filed: Sep 18, 1981
Inventor
Yoshitaka Araki
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.