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:
May. 17, 1977
Filed:
Aug. 01, 1975
Keiichi Aoyama, Minami-ashigara, JA;
Keeji Kaneko, Minami-ashigara, JA;
Katsuji Muramatsu, Tokyo, JA;
Ikuo Fuutagawa, Tokyo, JA;
Fuji Photo Film Co., Ltd., Minami-ashigara, JA;
Abstract
A film magazine comprised of a cylindrical portion and a pair of end covers is provided with film speed indicating code means. The cylindrical portion of the film magazine is made of metal sheet applied with an insulating coating layer. The surface of the cylindrical portion is selectively provided with non-coated sections for indicating the film speed of the film loaded therein in accordance with a binary code system. The code which indicates the film speed is sensed by a small number of sensing contacts provided in the camera body. The non-coated sections for indicating the film speed are located in the inaccessible area of the film magazine so that the coding sections may not be damaged.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile