Patents by Inventor Mark Canfield

Mark Canfield 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).

  • Back-lighting arrangement for illuminated signs
    Patent number: 6557283
    Abstract: An illuminated sign assembly having opaque indicia arranged on a translucent back-lighted panel, the assembly comprising an opaque frame consisting of an elongated rectangular enclosure with four walls, a bottom enclosure and an open top. The back-lighted panel extends across the open top of the enclosure, with the outer surface of the translucent panel being secured in place by a frame means having an inwardly extending opaque surface which masks the illuminating means from the translucent panel so as to indirectly illuminate the panel.
    Type: Grant
    Filed: October 16, 2001
    Date of Patent: May 6, 2003
    Inventor: Mark Canfield