Patents by Inventor Steven E. Piersch

Steven E. Piersch 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).

  • Interlocking blocks
    Patent number: 5222902
    Abstract: A toy connector in accordance with the present invention joins first and second structural elements which are aligned adjacent one another and engaged to form a flush, secure connection having a female connector assembly joined to the first structural element having at least two recess elements and at least one female snap element disposed between the recess elements, and a male connector assembly joined to the second structural element having at least one tongue adapted to engage each of the recess elements, and at least one male snap element adapted to engage the female snap element.
    Type: Grant
    Filed: August 6, 1991
    Date of Patent: June 29, 1993
    Assignee: The ERTL Company
    Inventor: Steven E. Piersch