Packaging bag and packaged product

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11667457
APP PUB NO 20180037391A1
SERIAL NO

15557218

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Abstract

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A packaging bag for packaging water-absorbent resin powder includes a resin sheet with gas barrier properties which is formed in a bag shape having a charge opening for charging the water-absorbent resin powder into the packaging bag. At least one resin sheet piece of the resin sheet is provided with an incision penetrating the resin sheet piece in a thickness direction thereof, the incision having a dimension not larger than a predetermined length according to a mass median particle size of the water-absorbent resin powder.

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Patent Owner(s)

  • SUMITOMO SEIKA CHEMICALS CO., LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujishiro, Katsuya Hyogo, JP 2 0
Kotake, Masato Hyogo, JP 9 34
Nishimori, Hiromichi Hyogo, JP 1 0

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Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Dec 6, 2026
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Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00