Patents by Inventor Porter J. Martin

Porter J. Martin 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).

  • Patent number: 6668474
    Abstract: A novel outdoor sign apparatus for mounting to a ground surface, e.g. a real estate sign. The outdoor sign apparatus comprises a pair of horizontally spaced footings for a support base, a movable support frame that holds the sign, a plurality of stakes for mounting, and support elements. The support frame is supported by each of the footings and has a first position substantially perpendicular to the footings for display and a second position substantially parallel to the footings for transport. Support elements such as chains (or other similar means such as cables, rigid bars, etc.) connect between the support frame and the footings to selectively hold the support frame vertically upright in the first position. The support elements can be disconnected to release and lower the support frame to the lowered position for transport. The stakes are driven downward into the ground at an outwardly extending angle relative to the vertically upright support frame and sign.
    Type: Grant
    Filed: January 11, 2001
    Date of Patent: December 30, 2003
    Inventors: Dean Winterton, Porter J. Martin
  • Publication number: 20020088157
    Abstract: A novel outdoor sign apparatus for mounting to a ground surface, e.g. a real estate sign. The outdoor sign apparatus comprises a pair of horizontally spaced footings for a support base, a movable support frame that holds the sign, a plurality of stakes for mounting, and support elements. The support frame is supported by each of the footings and has a first position substantially perpendicular to the footings for display and a second position substantially parallel to the footings for transport. Support elements such as chains (or other similar means such as cables, rigid bars, etc.) connect between the support frame and the footings to selectively hold the support frame vertically upright in the first position. The support elements can be disconnected to release and lower the support frame to the lowered position for transport. The stakes are driven downward into the ground at an outwardly extending angle relative to the vertically upright support frame and sign.
    Type: Application
    Filed: January 11, 2001
    Publication date: July 11, 2002
    Inventors: Dean Winterton, Porter J. Martin