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:
Sep. 11, 1990
Filed:
Aug. 24, 1989
Jeffrey S Beer, Perkiomenville, PA (US);
Michael D Gracie, Sr, Kennett Square, PA (US);
Fres-co System USA, Inc., Telford, PA (US);
Abstract
A package comprising first, second and third flexible panels of light-blocking material secured together for holding light sensitive sheet materials therein, with one of the panels being arranged to be completely peeled away and separated from the other panels to provide access to the materials within the package. The package is arranged for insertion into a rigid container where the sheets can be removed for processing. The package comprises a lower panel, a first upper panel, and a second upper panel. Each of the panels is formed of a web of flexible, light-blocking, material, e.g., a laminate of polyester and polyethylene, one or both of which incorporating a light blocking agent. The lower panel has a leading edge, a trailing edge, and a pair of side edges. The first upper panel has a leading edge, a trailing edge, and a pair of side edges. The second upper panel has a leading edge, a trailing edge, and a pair of side edges. The first upper panel is secured to the lower panel by permanent heat seals extending adjacent their respective leading and side edges. The second upper panel is releasably secured to the lower panel by readily peelable seals extending adjacent their respective trailing and side edges, while also being releasably secured to the first upper panel by a readily peelable seal extending adjacent the leading edge of the second upper panel and the trailing edge of the first upper panel.