Chair backrest
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 6, 2005
Grant Date -
N/A
app pub date -
Sep 5, 2003
filing date -
Sep 6, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Chair backrest, comprising a support structure (12), an upper backrest member (30) connected in oscillating fashion to said support structure (12), a lower backrest member (32), and a connecting element (80) which is fixed relative to one of said backrest members (32) and able to slide telescopically inside the other backrest member (30), the connecting element (80) having at least one elastically deformable zone (82) and being able to apply an elastic force to said backrest members (30, 32) as a result of a variation in the relative angular position of said backrest members (30, 32).
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Cited Art Landscape
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