Patents by Inventor Douglas M. Hart

Douglas M. Hart 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).

  • Elongated element display and retention apparatus
    Patent number: 5346076
    Abstract: Apparatus is attached to a storage rack for moldings and similar elongated elements to provide information concerning the elongated elements and assist in maintaining the elongated elements in a generally upright condition on the storage rack. The apparatus includes a housing having an inclined back wall for displaying informational materials and a removable transparent front wall allowing an observer to view the informational materials.
    Type: Grant
    Filed: March 16, 1993
    Date of Patent: September 13, 1994
    Assignee: OrePac Building Products
    Inventor: Douglas M. Hart
  • Display cabinet for attachment to a storage rack
    Patent number: D350157
    Type: Grant
    Filed: March 16, 1993
    Date of Patent: August 30, 1994
    Assignee: Orepac Building Products
    Inventor: Douglas M. Hart