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:
Mar. 05, 1996
Filed:
Mar. 01, 1994
Kunio Kawamura, Kawachinagano, JP;
Hiroyuki Okada, Sakai, JP;
Sadafusa Tsuji, Tondabayashi, JP;
Masaaki Chikasaki, Toyonaka, JP;
Michihiro Iwata, Sakai, JP;
Shuji Izumi, Sakai, JP;
Minolta Camera Kabushiki Kaisha, Osaka, JP;
Abstract
A camera using a film cartridge in which whether the film is exposed or unexposed can be distinguished by the phase of rotation of a shaft to rewinding a film, wherein said camera comprising: a film chamber to receive the film cartridge, a lid of the film chamber to capable of receiving the film cartridge in the film chamber when the lid is opened, a driving member which is connected with the shaft of the film cartridge and for driving the shaft, and a block member for blocking opening of the lid of the film chamber when the driving member is not the phase of rotation corresponding to the phase of rotation of the shaft in which the film is exposed.