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Current content: 157 117 910 patent documents

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139 301 new documents added

1 340 825 documents amended

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EP 0308538 B1 19911218 - BACK SUPPORT FOR A CHAIR

Title (en)

BACK SUPPORT FOR A CHAIR

Publication

EP 0308538 B1 19911218 (DE)

Application

EP 87114019 A 19870925

Priority

EP 87114019 A 19870925

Abstract (en)

[origin: EP0308538A1] The back support for the chair has a rest mounted on gimbals on a bearer. Provided between the bearer and the rest is a spring system which absorbs not only the sagittal movements, but also the torsional and transversal movements of the back of the user in a progressively supporting manner. <IMAGE>

IPC 1-7

A47C 7/44

IPC 8 full level

A47C 7/44 (2006.01)

CPC (source: EP)

A47C 7/448 (2013.01)

Designated contracting state (EPC)

AT CH DE FR GB IT LI NL

DOCDB simple family (publication)

EP 0308538 A1 19890329; EP 0308538 B1 19911218; AT E70415 T1 19920115; DE 3775397 D1 19920130; DE 8717656 U1 19890914

DOCDB simple family (application)

EP 87114019 A 19870925; AT 87114019 T 19870925; DE 3775397 T 19870925; DE 8717656 U 19870925