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Features common to compasses, dividers, and callipers

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  • CPC
  • B43L9/16
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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 B43L9/00Circular curve-drawing or like instruments

Current Industry

B43L9/16Features common to compasses, dividers, and callipers
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Compass having a leg joint and information bearing surfaces
    • Patent number 7,937,843
    • Issue date May 10, 2011
    • Intertech Zeichengeraete GmbH
    • Günther Partes
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Compass and compass-cutter with ratchet mechanism
    • Patent number 6,983,545
    • Issue date Jan 10, 2006
    • Olfa Corporation
    • Shoji Okada
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Compass and compass-cutter with ratchet mechanism
    • Patent number 6,889,440
    • Issue date May 10, 2005
    • Olfa Corporation
    • Shoji Okada
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Protective member for compass pins
    • Patent number 6,871,406
    • Issue date Mar 29, 2005
    • Sal Robert Elia
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Circle compass
    • Patent number 5,630,278
    • Issue date May 20, 1997
    • Safe-T Products, Inc.
    • Bruce Stoneberg
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Compass with safety pivot
    • Patent number 5,555,630
    • Issue date Sep 17, 1996
    • Etienne N. De Souza
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Compass having a squat tip
    • Patent number 5,546,663
    • Issue date Aug 20, 1996
    • Helix Limited
    • Clive W. Warwicker
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Safety compass
    • Patent number 5,090,127
    • Issue date Feb 25, 1992
    • Creative Works, L.P.
    • Bruce Shapiro
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Instrument and case
    • Patent number 4,912,855
    • Issue date Apr 3, 1990
    • Herbert A. Tatelbame
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Geometric instrument and method of making same
    • Patent number 4,858,326
    • Issue date Aug 22, 1989
    • Helix Group PLC.
    • Clive W. Warwicker
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3768166
    • Patent number 3,768,166
    • Issue date Oct 30, 1973
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3745662
    • Patent number 3,745,662
    • Issue date Jul 17, 1973
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3358371
    • Patent number 3,358,371
    • Issue date Dec 19, 1967
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2928180
    • Patent number 2,928,180
    • Issue date Mar 15, 1960
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2824373
    • Patent number 2,824,373
    • Issue date Feb 25, 1958
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2659155
    • Patent number 2,659,155
    • Issue date Nov 17, 1953
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2655727
    • Patent number 2,655,727
    • Issue date Oct 20, 1953
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2607118
    • Patent number 2,607,118
    • Issue date Aug 19, 1952
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2513670
    • Patent number 2,513,670
    • Issue date Jul 4, 1950
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2457474
    • Patent number 2,457,474
    • Issue date Dec 28, 1948
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2422286
    • Patent number 2,422,286
    • Issue date Jun 17, 1947
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2401321
    • Patent number 2,401,321
    • Issue date Jun 4, 1946
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2393698
    • Patent number 2,393,698
    • Issue date Jan 29, 1946
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2297999
    • Patent number 2,297,999
    • Issue date Oct 6, 1942
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2208062
    • Patent number 2,208,062
    • Issue date Jul 16, 1940
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2082065
    • Patent number 2,082,065
    • Issue date Jun 1, 1937
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1984467
    • Patent number 1,984,467
    • Issue date Dec 18, 1934
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1943921
    • Patent number 1,943,921
    • Issue date Jan 16, 1934
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1925082
    • Patent number 1,925,082
    • Issue date Sep 5, 1933
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1903393
    • Patent number 1,903,393
    • Issue date Apr 4, 1933
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents