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Donald T. Barber

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  • Toronto, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Apparatus for manufacture of reinforced file folders
    • Patent number 4,966,639
    • Issue date Oct 30, 1990
    • Wright Line of Canada Ltd.
    • George Pfeffer
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Reinforced file folder
    • Patent number 4,749,121
    • Issue date Jun 7, 1988
    • Datafile Limited
    • Donald T. Barber
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Method of producing a reinforced file folder
    • Patent number 4,588,463
    • Issue date May 13, 1986
    • Datafile Limited
    • Donald T. Barber
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Composite strip for add-on tab for file folder
    • Patent number 4,580,815
    • Issue date Apr 8, 1986
    • Datafile Limited
    • Donald T. Barber
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Method of adding color coded labels to files
    • Patent number 4,523,776
    • Issue date Jun 18, 1985
    • Datafile Limited
    • Donald T. Barber
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    File hangers
    • Patent number 4,473,158
    • Issue date Sep 25, 1984
    • Datafile Limited
    • Donald T. Barber
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    System for alphabetically labelling articles
    • Patent number 4,329,191
    • Issue date May 11, 1982
    • Datafile Limited
    • Donald T. Barber
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    File hanging system
    • Patent number 4,312,453
    • Issue date Jan 26, 1982
    • Datafile Limited
    • Donald T. Barber
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    File binding system
    • Patent number 4,288,170
    • Issue date Sep 8, 1981
    • Datafile Limited
    • Donald T. Barber
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Apparatus and method for replacement of file folders having fasteners
    • Patent number 4,281,445
    • Issue date Aug 4, 1981
    • Datafile Limited
    • Donald T. Barber
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    System for alphabetically labelling articles
    • Patent number 4,240,848
    • Issue date Dec 23, 1980
    • Datafile Limited
    • Donald T. Barber
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Coded label
    • Patent number 4,204,639
    • Issue date May 27, 1980
    • Datafile Limited
    • Donald T. Barber
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Automatic indicia applying machine
    • Patent number 4,183,779
    • Issue date Jan 15, 1980
    • Datafile Limited
    • Donald T. Barber
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER