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Sharpening files

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  • CPC
  • C23F1/06
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CCHEMISTRY METALLURGY C23Surface treatment C23FNON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25 C23F1/00Etching metallic material by chemical means

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C23F1/06Sharpening files
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Patents Grantslast 30 patents

  • Information Patent Grant

    Methods for manufacturing endodontic instruments
    • Patent number 7,398,598
    • Issue date Jul 15, 2008
    • Ultradent Products, Inc.
    • Paul Lewis
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Method for manufacturing endodontic instruments
    • Patent number 6,968,619
    • Issue date Nov 29, 2005
    • Ultradent Products, Inc.
    • Paul Lewis
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Solution and process for chemically resharpening smoothing tools, f...
    • Patent number 5,616,255
    • Issue date Apr 1, 1997
    • Anthony J. Tumminaro
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Solution and process for chemically resharpening smoothing tools, f...
    • Patent number 5,382,319
    • Issue date Jan 17, 1995
    • Anthony J. Tumminaro
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    3492178
    • Patent number 3,492,178
    • Issue date Jan 27, 1970
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    2667434
    • Patent number 2,667,434
    • Issue date Jan 26, 1954
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    2405101
    • Patent number 2,405,101
    • Issue date Jul 30, 1946
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    2303258
    • Patent number 2,303,258
    • Issue date Nov 24, 1942
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    2173218
    • Patent number 2,173,218
    • Issue date Sep 19, 1939
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    1965037
    • Patent number 1,965,037
    • Issue date Jul 3, 1934
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    1802795
    • Patent number 1,802,795
    • Issue date Apr 28, 1931
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    1454369
    • Patent number 1,454,369
    • Issue date May 8, 1923
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    1384550
    • Patent number 1,384,550
    • Issue date Jul 12, 1921
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    1314450
    • Patent number 1,314,450
    • Issue date Aug 26, 1919
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    1161816
    • Patent number 1,161,816
    • Issue date Nov 23, 1915
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    685299
    • Patent number 685,299
    • Issue date Oct 29, 1901
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    371184
    • Patent number 371,184
    • Issue date Oct 11, 1887
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    318957
    • Patent number 318,957
    • Issue date Jun 2, 1885
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    212490
    • Patent number 212,490
    • Issue date Feb 18, 1879
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    91271
    • Patent number 91,271
    • Issue date Jun 15, 1869
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    87733
    • Patent number 87,733
    • Issue date Mar 9, 1869
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    73590
    • Patent number 73,590
    • Issue date Jan 21, 1868
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    43658
    • Patent number 43,658
    • Issue date Jul 26, 1864
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...

Patents Applicationslast 30 patents