Five-layer intellectual cube
US6129356A · kind A · utility
Inventor
Key dates
| Filing date | May 12, 1998 |
| Grant date | Oct 10, 2000 |
| Priority date | — |
| Expiry date | May 12, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63F9/0842
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A five-layer intellectual cube includes six sides, each of which is divided vertically and horizontally into five smaller movable surfaces respectively so that each side has 25 smaller movable surfaces. By rotating the six sides, the arrangement of the smaller movable surfaces can be changed to provide a variety of combinations by colors or patterns. The cube includes a central axle block, six first blocks, twenty-four second blocks, twelve third blocks, twenty-four fourth blocks, twenty-four fifth blocks and eight sixth blocks arranged so that the blocks can be assembled into regular sub-units that can easily be stacked to form the cube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.