Patents by Inventor Walter J. Maker

Walter J. Maker 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).

  • In mold overlay process for gel coated glass fiber reinforced laminates
    Patent number: 5087405
    Abstract: A method of protecting glass fiber reinforced products from the effects of weathering by applying a polymeric resin overlay to the product in mold. Conventional waxing of molds is eliminated. The mold is prepared by applying a layer of a lecithin solution, and the overlay is applied thereafter. A layer of gel coat is then applied to the overlay, the gel coat is reinforced and the overlay-protected product is demolded. The invention also includes a method for making an overlay-protected synthetic marble product.
    Type: Grant
    Filed: November 8, 1988
    Date of Patent: February 11, 1992
    Assignee: Coplas, Inc.
    Inventor: Walter J. Maker