The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 29, 1980
Filed:
Oct. 12, 1977
Ryoichi Suzuki, Kawasaki, JP;
Tetsuya Taguchi, Kawasaki, JP;
Toyotosi Suzuki, Tokyo, JP;
Noriaki Sanada, Yokohama, JP;
Nobuo Tezuka, Tokyo, JP;
Takashi Uchiyama, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A manually operable or automatic film speed setting system adapted for use in an electronic exposure control apparatus of a photographic camera. When a film cartridge having an electrically conductive marker representative of the sensitivity of film therein is loaded in the camera, information representative of film speed is automatically introduced into the exposure value computer regardless of the manually switched position of the inherent film speed dial different from that for the sensitivity of the used film.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile