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. 31, 1992
Filed:
Dec. 31, 1990
Applicant:
Inventor:
Matthew DiPietro, Webster, NY (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
354277 ; 378187 ;
Abstract
A light lock is formed by a channel with spaced walls, with the channel being open at one side. A light absorbing material is positioned in the channel and has bristles projecting toward the opening. A flange projects through the opening toward the material but is spaced from the bristles. The channel can be formed on one portion of a magazine, cassette or the like, for light tight materials such as photographic film, and the flange can be formed on another portion of such a magazine or cassette.