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Carl Christianson

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  • Clearwater, FL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Collapsible stepladder
    • Patent number 10,435,949
    • Issue date Oct 8, 2019
    • Carl Christianson
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS

Patents Applicationslast 30 patents

  • Information Patent Application

    COLLAPSIBLE STEPLADDER
    • Publication number 20190128065
    • Publication date May 2, 2019
    • Carl Christianson
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS