Patents by Inventor Gerald Herbert Holtom

Gerald Herbert Holtom 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).

  • Manufacture of boat hulls and other hollow articles
    Patent number: 4118814
    Abstract: A boat hull is made by winding a layer of glass-fibre around a male mould, winding a layer of foam sandwich material on top of the glassfibre, and then winding a second layer of glassfibre on top of the foam.
    Type: Grant
    Filed: May 18, 1976
    Date of Patent: October 10, 1978
    Inventor: Gerald Herbert Holtom