TREA

Richard T. Metcalfe

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  • Sturbridge, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Lens overlays for eyewear
    • Patent number 6,241,352
    • Issue date Jun 5, 2001
    • Cabot Safety Intermediate Corporation
    • Richard T. Metcalfe
    • G02 - OPTICS
  • Information Patent Grant

    Semi-rimless eyeglass frame assembly
    • Patent number 5,406,337
    • Issue date Apr 11, 1995
    • Cabot Safety Corporation
    • Richard T. Metcalfe
    • G02 - OPTICS
  • Information Patent Grant

    Eyeglass safety frame
    • Patent number D333478
    • Issue date Feb 23, 1993
    • Cabot Safety Corporation
    • Richard T. Metcalfe
    • D16 - Photography and optical equipment
  • Information Patent Grant

    Protective goggle
    • Patent number D328084
    • Issue date Jul 21, 1992
    • Arthur J. Salce
    • D16 - Photography and optical equipment
  • Information Patent Grant

    Disposable faceshield and method of manufacture thereof
    • Patent number 5,088,114
    • Issue date Feb 18, 1992
    • Cabot Safety Corporation
    • Arthur J. Salce
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Disposable faceshield
    • Patent number D321958
    • Issue date Nov 26, 1991
    • Cabot Safety Corporation
    • Arthur J. Salce
    • D29 - Equipment for safety, protection, and rescue
  • Information Patent Grant

    Disposable faceshield
    • Patent number D321067
    • Issue date Oct 22, 1991
    • Cabot Safety Corporation
    • Arthur J. Salce
    • D29 - Equipment for safety, protection, and rescue
  • Information Patent Grant

    Protective goggle
    • Patent number 4,977,627
    • Issue date Dec 18, 1990
    • American Optical Corporation
    • Richard T. Metcalfe
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Disposable faceshield
    • Patent number D311782
    • Issue date Oct 30, 1990
    • American Optical Corporation
    • Arthur J. Salce
    • D28 - Cosmetic products and toilet articles
  • Information Patent Grant

    Method of vacuum forming disposable faceshield
    • Patent number 4,950,445
    • Issue date Aug 21, 1990
    • Cabot Safety Corporation
    • Arthur J. Salce
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Disposable faceshield
    • Patent number D308582
    • Issue date Jun 12, 1990
    • American Optical Corporation
    • Arthur J. Salce
    • D28 - Cosmetic products and toilet articles
  • Information Patent Grant

    Eyeglass frame structure and method of assembling same
    • Patent number 4,699,479
    • Issue date Oct 13, 1987
    • American Optical Corporation
    • Richard T. Metcalfe
    • G02 - OPTICS
  • Information Patent Grant

    Spectacles hinge
    • Patent number 4,178,081
    • Issue date Dec 11, 1979
    • American Optical Corporation
    • Richard T. Metcalfe
    • G02 - OPTICS