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, 1983
Filed:
Jan. 25, 1982
Applicant:
Inventors:
Katsuhiko Okabe, Tokorozawa, JP;
Toshihiko Watanabe, Tokyo, JP;
Assignee:
Copal Company Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
355 75 ; 355 76 ;
Abstract
A negative film carrier device comprising a negative film carrier provided with an inherent signal part corresponding to the size of a negative film to be carried and a negative film carrier supporting base provided with a negative film size senser switch which can be operated by the signal part when the negative film carrier is mounted, in order to prevent the misoperation in the case of changing the size of the negative film and to facilitate the automation of the printer.