Patents by Inventor Francis C. Brown

Francis C. Brown 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).

  • Support structure for road signs
    Patent number: 5362020
    Abstract: A support structure for a road warning sign comprising a pair of elongated hinged crossbar members having support leg members pivotally connected thereto at their ends, said support leg members being adapted to be swung outwardly and downwardly from a folded location along the crossbar members to a ground engaging position whereby said hingedly connected crossbar members close to secure therebetween a sheet material road sign.
    Type: Grant
    Filed: June 7, 1993
    Date of Patent: November 8, 1994
    Assignee: Doyle & Brown Pipelines Pty. Ltd.
    Inventor: Francis C. Brown