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:
Dec. 02, 1980
Filed:
Jun. 01, 1978
Applicant:
Inventor:
Takumi Kobayashi, Tokyo, JP;
Assignee:
Asahi Kogaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B / ; G03B / ;
U.S. Cl.
CPC ...
354209 ; 354212 ;
Abstract
Shifting of the image plane during multiple exposure photography is prevented by releasing the unwinding button and a film locking member after the shutter operation. The release mechanism is preferably operated by an electromagnet used in the shutter operation.
Kobayashi, Takumi. (1980). Unwinding-mechanism releasing device for use in a camera (U.S. Patent No. 4236799). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4236799
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile