Patents by Inventor William Carlo Hart

William Carlo Hart 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).

  • Process for color and surface stabilization in forming water-extendable polyester resin plastics and the like
    Patent number: 4076784
    Abstract: This disclosure is concerned with stabilizing the color and surface of catalytically cured water-extendable polyester resin plastics and the like by appropriate constituent proportions and mold wall selection that enable effecting critical sealing to predetermined portions of the mold to prevent air flow or communication at the mold-plastic mass interfaces during the gel cycle.
    Type: Grant
    Filed: February 9, 1976
    Date of Patent: February 28, 1978
    Inventors: Maurice Wright Hart, Jr., William Carlo Hart