TREA

Envelope openers

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  • CPC
  • Y10S30/03
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YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS Y10USPC classification Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS Y10S30/00Cutlery

Current Industry

Y10S30/03Envelope openers
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Mobile sheet material cutting device
    • Patent number 6,952,878
    • Issue date Oct 11, 2005
    • Kathryn M. Bareis
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Letter opener
    • Patent number 6,898,856
    • Issue date May 31, 2005
    • King Biu Mak
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Rolling sheet material cutting device
    • Patent number 6,684,512
    • Issue date Feb 3, 2004
    • Kathryn M. Bareis
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Bag slitting apparatus with flat cutting blade
    • Patent number 6,658,742
    • Issue date Dec 9, 2003
    • Earl J. Votolato
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Two-piece letter opener
    • Patent number 6,574,871
    • Issue date Jun 10, 2003
    • Frank J. Visconti
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Combined letter opener and sheet-like material cutter tool
    • Patent number 6,003,181
    • Issue date Dec 21, 1999
    • Pacific Handy Cutter, Inc.
    • Robert B. Wenk
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Plastic wrap piercing-cutting device
    • Patent number 5,896,667
    • Issue date Apr 27, 1999
    • Jennifer B. Hawkins
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Grant

    Cutting apparatus
    • Patent number 5,832,613
    • Issue date Nov 10, 1998
    • Port Bell Pty Ltd
    • Michael Kenneth Adrian Rhodes
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Grant

    Business card displaying letter opener device
    • Patent number 5,819,419
    • Issue date Oct 13, 1998
    • Pacific Handy Cutter, Inc.
    • G. Gerry Schmidt
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Envelope opening machine
    • Patent number 5,470,182
    • Issue date Nov 28, 1995
    • Omation Corporation
    • Edward A. Krupotich
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    IV bag cutter
    • Patent number 5,419,044
    • Issue date May 30, 1995
    • Ottawa General Hospital
    • Joseph B. M. Valliere
    • B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...
  • Information Patent Grant

    Cutting device
    • Patent number 5,414,933
    • Issue date May 16, 1995
    • Ted V. Garner
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Bag opening device
    • Patent number 5,357,679
    • Issue date Oct 25, 1994
    • Lori A. Hanna
    • B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...
  • Information Patent Grant

    Bag opening and reclosing device
    • Patent number 5,347,671
    • Issue date Sep 20, 1994
    • Larry D. Hunts
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Cutter
    • Patent number 5,285,575
    • Issue date Feb 15, 1994
    • Toru Hirano
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Letter opener with protected recess for business card and removable...
    • Patent number 5,285,577
    • Issue date Feb 15, 1994
    • Quick Point, Inc.
    • Albert P. Carney
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Cutter
    • Patent number 5,127,161
    • Issue date Jul 7, 1992
    • Saiko Inc.
    • Shunsuke Ikeda
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Device for cutting a tape of a roll of tapes and opening an envelope
    • Patent number 5,117,524
    • Issue date Jun 2, 1992
    • Hanseung Company, Ltd.
    • Key Yia Chang
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Cutter for cutting the folded edge of folded paper sheets or the like
    • Patent number 5,115,568
    • Issue date May 26, 1992
    • Midori Co., Ltd.
    • Masaaki Aida
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Package opening tool
    • Patent number 5,103,562
    • Issue date Apr 14, 1992
    • Harold Braatz
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Tool for obliquely severing flower stems
    • Patent number 5,020,408
    • Issue date Jun 4, 1991
    • Gert Idema
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Grant

    Bag opener apparatus
    • Patent number 5,007,171
    • Issue date Apr 16, 1991
    • John H. Horning
    • B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...
  • Information Patent Grant

    Letter opener
    • Patent number 5,001,833
    • Issue date Mar 26, 1991
    • Dieter Haage
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Letter opener
    • Patent number 4,803,782
    • Issue date Feb 14, 1989
    • Hin C. Lok
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Combined envelope opener and pencil sharpener unit
    • Patent number 4,741,105
    • Issue date May 3, 1988
    • Wellmann Industrial Co. Ltd.
    • Man K. Wong
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Envelope opener
    • Patent number 4,711,031
    • Issue date Dec 8, 1987
    • Anello; Paul Joseph
    • Joan Annello
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Slitter assembly
    • Patent number 4,530,154
    • Issue date Jul 23, 1985
    • DiCarlo Pen Company
    • Carlton DiCarlo
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Grant

    Hand held opening apparatus
    • Patent number 4,455,894
    • Issue date Jun 26, 1984
    • Richard D. Roberts
    • B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...
  • Information Patent Grant

    Cutting blade
    • Patent number 4,432,138
    • Issue date Feb 21, 1984
    • Albert V. Piccolo
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Grant

    Cutting apparatus
    • Patent number 4,385,440
    • Issue date May 31, 1983
    • Harry T. Webb
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING

Patents Applicationslast 30 patents

  • Information Patent Application

    LETTER OPENER
    • Publication number 20050081390
    • Publication date Apr 21, 2005
    • King Biu Mak
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Bag slitting apparatus with flat cutting blade
    • Publication number 20020000045
    • Publication date Jan 3, 2002
    • Earl J. Votolato
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC