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:
Jul. 13, 2004
Filed:
Apr. 16, 2003
Applicant:
Inventor:
Yet Chan, Kowloon, HK;
Assignee:
Foster Assets Corporation, , HK;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 1/736 ;
U.S. Cl.
CPC ...
G03B 1/736 ;
Abstract
A camera for use with film bearing a series of latent pre-exposed images for subsequent user-exposure, comprises a film sprocket wheel ( ) extending into a film passageway, the sprocket wheel comprising a wheel having a plurality of equidistantly-spaced teeth one ( ) of which is visually distinguishable from other teeth, for example being formed of a contrasting color.