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US Patent 7600814 Seating furniture item, in particular office chair

Overview Structured Data Issues Contributors Activity

Is a

Patent attributes

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

Date of Patent

October 13, 2009

Patent Application Number

11868616

Date Filed

October 8, 2007

Patent Citations Received

US Patent 11950710 Chair having a leaf spring with a working length that shortens to increase resistance to tilting of a backrest relative to a column

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US Patent 11963621 Seating arrangement

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US Patent 11998118 Chair having a leaf spring in contact with a linkage to provide a resistance to tilting of a backrest of the chair relative to a column of the chair

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US Patent 11744373 Chair having a leaf spring with a fulcrum point that moves to shorten a working length of the leaf spring and increase resistance to tilting of a backrest portion of the chair relative to a column portion of the chair

US Patent 11744374 Reconfigurable apparatus having a leaf spring with a working length that shortens to increase resistance to tilting of a backrest relative to a column, and process for assembling the reconfigurable apparatus

US Patent 11944210 Chair having at least three different components that move together when a weight is applied to the seat, the chair also including a leaf spring in direct contact with the linkage to provide resistance to tilting of a backrest of the chair

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Patent Primary Examiner

Patent abstract

A seating furniture item, in particular an office chair, has a seat fastened on a seat support and a backrest fastened to a backrest support, the backrest support being articulatedly arranged on a base support and the backrest support and the seat support being articulatedly connected with each other via two levers, and in which one of the two levers is positively guided directly on the base support.

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