Construction systems and elements thereof
US4817356A · kind A · utility
9Cited by
12References
8Claims
0Family size
Inventor
Key dates
| Filing date | Feb 19, 1987 |
| Grant date | Apr 4, 1989 |
| Priority date | — |
| Expiry date | Feb 19, 2007 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04C2003/0478
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Construction elements of predetermined cross-section profiles are formed of wood, plastic and/or metal. These construction elements are useful in building construction, preformed panel systems and preformed truss structures. The shapes of the construction elements are also adaptable to a toy contsruction set.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.