Chainable building blocks
US5172534A · kind A · utility
99Cited by
12References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 2, 1991 |
| Grant date | Dec 22, 1992 |
| Priority date | — |
| Expiry date | Apr 2, 2011 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04B2/12
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A construction set is made up of a plurality of detachably chainable links capable of being pivotally attached to one another to form stable geometric structures. Detents are provided at a plurality of pivot positions so as to preferentially hold the engaged links in stable and precise positions relative one to another.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.