Method of fabricating and devices employing vents

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United States of America Patent

PATENT NO 8758488
SERIAL NO

13373755

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Importance

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Abstract

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Vents for containers include a perforated substrate portion (20) of polymer material over which is thermally bonded a gas permeable membrane (30). The thermal bond (31) is direct and adhesive-free so that there is no adhesive available for chemical attachment by materials within the containers (58) and no opportunity for an adhesive to interfere with or block perforations through the substrate.

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Patent Owner(s)

Patent OwnerAddress
NUCFIL LLC400 CORPORATE CIRCLE UNIT M GOLDEN CO 80401

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Wickland, Terry J Evergreen, US 18 263

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