Patents by Inventor Marcelo M. Zuviria

Marcelo M. Zuviria 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).

  • Solid rectangular building block for a toy building set
    Patent number: 5069647
    Abstract: A solid rectangular building block for a toy building set which is intended to interlock frictionally with like building blocks. The building block has a plurality of intersecting grooves formed in its faces in a predetermined patterned, and it also has a number of tongues extending outwardly from certain other faces which are intersected by the grooves and which are intended to fit into the grooves of like blocks in a frictional relationship with the grooves.
    Type: Grant
    Filed: April 19, 1990
    Date of Patent: December 3, 1991
    Inventor: Marcelo M. Zuviria