Patents by Inventor Salvator Lazar

Salvator Lazar 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).

  • Plastic colored crayon
    Patent number: 4741774
    Abstract: A plastic colored crayon, comprises: an outer layer of plastic; and an inner, abradable, colored core comprising a mixture of ethyl hydroxyethyl cellulose, a plastic binder, wax and coloring matter.
    Type: Grant
    Filed: December 16, 1986
    Date of Patent: May 3, 1988
    Inventor: Salvator Lazar