Venting system for ovenable containers

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12252324
APP PUB NO 20240051728A1
SERIAL NO

18494271

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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The invention comprises an ovenable packaging structure having an integral one-way valve. The laminate structure comprises an outer layer having a cut line which defines a flap that is separable from the outer layer, wherein the outer layer is adhered to an inner layer having a cut line which is offset from the outer cut line and defines a portion that is separable from the inner layer along the inner cut line and defines an opening into the packaging structure. The adhesive between the layers comprises, in an embodiment, a channel of pressure sensitive adhesive which surrounds both the outer cut line and the inner cut line, wherein the channel of pressure sensitive adhesive defines the perimeter of at least one adhesive-free valve chamber within said channel. The valve chamber comprises at least a portion of the outer cut line and the inner cut line.

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Patent Owner(s)

  • SONOCO DEVELOPMENT, INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Huffer, Scott William Hartsville, US 104 972

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