Backrest of a chair
US6626497B2 · kind B2 · utility
107Cited by
7References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2001 |
| Grant date | Sep 30, 2003 |
| Priority date | — |
| Expiry date | Oct 19, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C7/40
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
The backrest of a chair comprises an inner low rigidity flexible back-receiving portion and an outer high-rigidity side frame spaced from the back-receiving portion via a slit. The backrest is integrally molded by synthetic resin, thereby shortening manufacturing process and reducing its cost. Comfort of a sitting person is also attained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.