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:
Feb. 14, 1984
Filed:
May. 14, 1982
Applicant:
Inventors:
Hiroshi Iwata, Nara, JP;
Tsunemi Yoshino, Nara, JP;
Assignee:
West Electric Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ; G03B / ;
U.S. Cl.
CPC ...
354446 ; 35414911 ; 3542271 ; 3542711 ;
Abstract
A camera with a liquid crystal aperture stop means has a shift means adapted to shift the liquid crystal aperture stop means between a plurality of positions depending upon exposure conditions.
Iwata, Hiroshi. (1984). Camera with liquid crystal aperture control means (U.S. Patent No. 4431288). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4431288
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile