Backrests
US4350388A · kind A · utility
32Cited by
8References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 3, 1978 |
| Grant date | Sep 21, 1982 |
| Priority date | — |
| Expiry date | Oct 3, 1998 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C7/46
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A chair backrest having a rigid rectangular base plate and a flexible back support member attached to but movable relative to the base plate, and a spacer between the base plate and the support member, which spacer is movable to adjust the contour of the support member, cooperating locking members being provided on the base plate and spacer to lock the spacer in a number of chosen positions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.