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:
Aug. 02, 1977
Filed:
Jun. 13, 1975
Applicant:
Inventors:
Yasuhiro Nanba, Toyokawa, JA;
Masayoshi Sahara, Sakai, JA;
Assignee:
Minolta Camera Kabushiki Kaisha, Osaka, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
354 24 ; 354 50 ; 354 51 ; 354 / ;
Abstract
A control device for controlling the exposure time automatically for an electric shutter, in a single reflex camera of the so-called 'through the lens' photometric type which determines the brightness of an object by means of the light past through the projection lens of a camera.
Nanba, Yasuhiro. (1977). Exposure time control device for an electric shutter in a single reflex (U.S. Patent No. 4040068). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4040068
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile