Patents by Inventor Harold E. Dyas

Harold E. Dyas 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).

  • Low cost transfer ink coating
    Patent number: 4053660
    Abstract: A low cost transfer ink coating, comprising a polyhydroxy alcohol, a non-drying oil, a wax, a kaoline-type clay, and a dye, for use on a transfer sheet which is used in making master sheets for the printing of multiple copies therefrom and a method of making such transfer ink coating.
    Type: Grant
    Filed: December 10, 1975
    Date of Patent: October 11, 1977
    Assignee: Bell & Howell Company
    Inventors: Harold S. Hurwitz, Harold E. Dyas