Building block

Abstract

Description

The patent or application file contains at least one drawing executed in color. Copies of this patent or patent application publication with color drawing(s) will be provided by the Office upon request and payment of the necessary fee.

1. Building block

1.1 : Perspective

1.2 : Front

1.3 : Left

1.4 : Back

The building block is characterized by the presence of a rectangular parallelepiped at the base of the volume formation; all faces of a rectangular parallelepiped are characterized by the presence of three rows of recesses with ring elements and through holes; all recesses are staggered on the sides of the parallelepiped; all the faces of a rectangular parallelepiped are also characterized by the presence of pyramidal protrusions.

Claims

The ornamental design for a building block, as shown and described.