Patents by Inventor John Altenhof

John Altenhof has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Mould for closure caps with intermittent threads undercuts or hold-down lugs
    Patent number: 4019711
    Abstract: A core is provided, useful in the manufacture of closure caps, each closure cap having a top, dependent skirt and securing means, comprising intermittent or interrupted threads or hold-down lugs.
    Type: Grant
    Filed: November 10, 1975
    Date of Patent: April 26, 1977
    Assignees: J & J Tool and Mold Ltd., Consumers Glass Co., Ltd.
    Inventors: Jack Altenhof, John Altenhof, Robert Chartier