Patents by Inventor Roderick R. McDonald

Roderick R. McDonald 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).

  • Security assembly for vehicle roofrack
    Patent number: 4827742
    Abstract: A security assembly to secure a ladder to a roofrack, the assembly includes a lock which moves a hooked rod from an engaging position with respect to a rung of the ladder, to a release position spaced from the rung so that in the engaging position the ladder is secured to the roofrack by the hook engaging the rung.
    Type: Grant
    Filed: February 3, 1987
    Date of Patent: May 9, 1989
    Assignee: Unistrut Australia Pty. Ltd.
    Inventor: Roderick R. McDonald