Double top chord
US4729201A · kind A · utility
24Cited by
29References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 5, 1987 |
| Grant date | Mar 8, 1988 |
| Priority date | — |
| Expiry date | Jan 5, 2007 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04D13/1476
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A steel joist is disclosed consisting of a web, a bottom chord and a double top chord construction consisting of two elongated substantially identical portions each being of S cross-section and being connected to or integral with the web.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.