Patents by Inventor John R. Sleeper

John R. Sleeper 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: 4484745
    Abstract: A jigsaw puzzle assembly and storage apparatus is disclosed. The apparatus includes a ferromagnetic base portion preferably contructed including a thin layer of tin or steel. The base portion includes at least one beveled edge which permits a partial assembly or an entire puzzle to be shifted intact up the beveled edge and onto the base portion for storage. A flexible magnetic cover sheet is hingeably coupled to the base portion along one edge and the magnetic attraction between the entire surface of the ferromagnetic base portion and the magnetic cover sheet serves to hold a plurality of jigsaw puzzle pieces fixedly mounted in a desired relationship during horizontal or vertical storage. A preferred embodiment of the present invention includes a set of folding legs disposed on the lower surface of the base portion which permit the base portion to be utilized as a freestanding work station.
    Type: Grant
    Filed: June 6, 1983
    Date of Patent: November 27, 1984
    Inventor: John R. Sleeper