Cleaning sheet

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12178374
APP PUB NO 20210030250A1
SERIAL NO

17046145

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Importance

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Abstract

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A cleaning sheet that is capable of reliably capturing dust without damaging a cleaning target surface regardless of size and the like of dust falling on the cleaning target surface is described. The cleaning sheet for cleaning a cleaning target object includes a base material sheet, a first brush portion that is provided to the base material sheet and is formed of a fiber material, and a second brush portion that is provided to the base material sheet and is formed of crushed pulp materials that are layered.

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First Claim

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Family

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Patent Owner(s)

Patent OwnerAddress
SELF SETTLED TRUST OF YAMADA KIKUOTIARA SHIMAZUYAMA 305 1-2-15 HIGASHIGOTANDA SHINAGAWA-KU TOKYO 141-0022

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Yamada, Kikuo Tokyo, JP 90 955

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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 Jun 30, 2028
7.5 Year Payment $3600.00 $1800.00 $900.00 Jun 30, 2032
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Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
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Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
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