Patents by Inventor Martin E. Pruesner

Martin E. Pruesner 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).

  • Portable shade structures employing non-snag hooks
    Patent number: 5117853
    Abstract: A portable shade structure includes a structural framework with space supports, and hook-receiving holes along some of the supports. A removable fabric cover fits across the structural framework, and has plural hooks attached at spaced locations dimensioned to removably fit into the hook-receiving holes of the support. Each hook has a curved return which permits the hook to be engaged within a corresponding hole, but which provides a smooth surface that reduces snagging when the hook is moved across, or is stored against the fabric cover.
    Type: Grant
    Filed: July 9, 1990
    Date of Patent: June 2, 1992
    Assignee: Gale Group, Inc.
    Inventor: Martin E. Pruesner