Granted Patent
Utility
US 4,332,452 · App. 06/215,343
Electric shutter for camera
Inventors:
Yoshiyuki Nakano, Etsuo Tanaka
Patented Case
View Patent ↗
Granted: Jun 1, 1982
Filed: Dec 11, 1980
Inventors
Yoshiyuki Nakano
Etsuo Tanaka
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.