TREA

Eraser cleaners

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Industry

  • CPC
  • B43L19/0037
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Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B43Writing accessories B43LARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING B43L19/00Erasers, rubbers, or erasing devices Holders therefor

Current Industry

B43L19/0037Eraser cleaners
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Blackboard eraser cleaner
    • Patent number 11,951,765
    • Issue date Apr 9, 2024
    • Zhejiang University
    • Qinmin Yang
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Retractable eraser with bristles
    • Patent number 7,861,355
    • Issue date Jan 4, 2011
    • Acme United Corporation
    • Stuart David Farnworth
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Blackboard eraser
    • Patent number 6,895,627
    • Issue date May 24, 2005
    • Chieh-Jen Lin
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Pencil eraser cleaner
    • Patent number 5,706,543
    • Issue date Jan 13, 1998
    • Russell R. Lalevee
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3548436
    • Patent number 3,548,436
    • Issue date Dec 22, 1970
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3127714
    • Patent number 3,127,714
    • Issue date Apr 7, 1964
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2888785
    • Patent number 2,888,785
    • Issue date Jun 2, 1959
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2862339
    • Patent number 2,862,339
    • Issue date Dec 2, 1958
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2852897
    • Patent number 2,852,897
    • Issue date Sep 23, 1958
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2663044
    • Patent number 2,663,044
    • Issue date Dec 22, 1953
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1823878
    • Patent number 1,823,878
    • Issue date Sep 22, 1931
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1641000
    • Patent number 1,641,000
    • Issue date Aug 30, 1927
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

  • Information Patent Application

    BLACKBOARD ERASER CLEANER
    • Publication number 20240140131
    • Publication date May 2, 2024
    • Zhejiang University
    • QINMIN YANG
    • B08 - CLEANING
  • Information Patent Application

    Retractable eraser with bristles
    • Publication number 20090064453
    • Publication date Mar 12, 2009
    • Stuart David Farnworth
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Chalk and dry marker eraser roller
    • Publication number 20070234498
    • Publication date Oct 11, 2007
    • Valerie Mornet Warner
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Vacuum board eraser
    • Publication number 20070157423
    • Publication date Jul 12, 2007
    • His-Hur Lai
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Dustless eraser for blackboards
    • Publication number 20050015923
    • Publication date Jan 27, 2005
    • Hsi-Hur Lai
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Disposable dry marker eraser
    • Publication number 20040205919
    • Publication date Oct 21, 2004
    • William M. Sims
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES