Geometric construction piece
US3991511A · kind A · utility
16Cited by
5References
21Claims
0Family size
Inventors
Key dates
| Filing date | Feb 26, 1975 |
| Grant date | Nov 16, 1976 |
| Priority date | — |
| Expiry date | Feb 26, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24777
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A construction member having a ring-shaped body with an outer edge and an inner edge. The outer edge has a plurality of inwardly directed notches and the inner edge has a plurality of outwardly directed notches. The notches accommodate additional construction members so that two or more construction members can be connected together. The construction members can have the shape of a square, triangle, circle or other multisided shapes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.