Patents by Inventor Lee M. Rothenberg, Jr.

Lee M. Rothenberg, Jr. 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).

  • Toy construction kit
    Patent number: 4521203
    Abstract: A toy construction kit comprising three basic elements, end blocks or logs, wall logs and enclosure panels. All of the logs, irrespective of length, are provided with at least one recess on each opposite face thereof for stacking, interlocking engagement with another log. Life-size play structures may be readily built and taken down without the use of fasteners, adhesives or tools. The elements are made of honeycomb sandwich kraft having exceptional length.
    Type: Grant
    Filed: April 23, 1984
    Date of Patent: June 4, 1985
    Assignee: International Honeycomb Corporation
    Inventor: Lee M. Rothenberg, Jr.