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.:

US 8039070 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 18, 2011

Filed:

Jan. 21, 2009
Applicants:

Bradley Thomas Sawall, Appleton, WI (US);

Thomas Andrew Schell, Winnecone, WI (US);

Benjamin Ray Stover, Centerville, IA (US);

Inventors:

Bradley Thomas Sawall, Appleton, WI (US);

Thomas Andrew Schell, Winnecone, WI (US);

Benjamin Ray Stover, Centerville, IA (US);

Assignee:

Curwood, Inc., Oshkosh, WI (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B65B 53/00 (2006.01); F16B 4/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A heat-shrinkable film suitable for forming an easy opening cook-in bag is provided. The film comprises at least five layers, including an inner layer, an inner frangible layer, a barrier layer, an outer frangible layer, and an outer layer. The film is capable of being formed into a bag comprising a lap seal, a top end seal, and a bottom end seal, wherein the seals are heat sealed to a closed condition to contain and protect a product disposed therein. The lap seal, top end seal, and bottom end seal each are able to remain sealed during cook-in conditions. Additionally, the lap seal, top end seal, and bottom end seal each are peelable and easily openable by application of force.


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