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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ATTORNEY / AGENT: (SPONSORED)

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.

First Claim

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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)

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  • 2019 Application Filing Year
  • A47L Class
  • 1259 Applications Filed
  • 873 Patents Issued To-Date
  • 69.35 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20192020202120222023202420250255075100

Inventor(s)

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

Cited Art Landscape

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Patent Citation Ranking

  • 0 Citation Count
  • A47L Class
  • 0 % this patent is cited more than
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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges9743701 - 1005010015020025030035040045050055060065070075080085090095010001050

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Maintenance Fees

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3.5 Year Payment $1600.00 $800.00 $400.00 Jun 30, 2028
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11.5 Year Payment $7400.00 $3700.00 $1850.00 Jun 30, 2036