RU2649381C2 - Кресло и опорные структуры - Google Patents

Кресло и опорные структуры Download PDF

Info

Publication number
RU2649381C2
RU2649381C2 RU2015112033A RU2015112033A RU2649381C2 RU 2649381 C2 RU2649381 C2 RU 2649381C2 RU 2015112033 A RU2015112033 A RU 2015112033A RU 2015112033 A RU2015112033 A RU 2015112033A RU 2649381 C2 RU2649381 C2 RU 2649381C2
Authority
RU
Russia
Prior art keywords
elongated strips
strips
elongated
structural element
connecting elements
Prior art date
Application number
RU2015112033A
Other languages
English (en)
Russian (ru)
Other versions
RU2015112033A (ru
Inventor
Дэймон Грегори БУРУЭЛЛ
Аарон Майкл ЯНГ
Пол Майкл УИЛКИНСОН
Кристофер Уоррен БИСМАН
Стюарт Грегори МУНРО
Джеймс Клиффорд ПРАЙЕР
Original Assignee
Формвэй Фурнитуре Лимитед
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Формвэй Фурнитуре Лимитед filed Critical Формвэй Фурнитуре Лимитед
Publication of RU2015112033A publication Critical patent/RU2015112033A/ru
Application granted granted Critical
Publication of RU2649381C2 publication Critical patent/RU2649381C2/ru

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Supports for the head or the back
    • A47C7/40—Supports for the head or the back for the back
    • A47C7/44—Supports for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03255—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest with a central column, e.g. rocking office chairs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
    • A47C1/03266—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with adjustable elasticity
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
    • A47C1/03277—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with bar or leaf springs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
    • A47C1/03277—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with bar or leaf springs
    • A47C1/03279—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with bar or leaf springs of torsion type
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C5/00—Chairs of special materials
    • A47C5/12—Chairs of special materials of plastics, with or without reinforcement
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Supports for the head or the back
    • A47C7/40—Supports for the head or the back for the back
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Supports for the head or the back
    • A47C7/40—Supports for the head or the back for the back
    • A47C7/46—Supports for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Supports for the head or the back
    • A47C7/40—Supports for the head or the back for the back
    • A47C7/46—Supports for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
    • A47C7/462—Supports for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs adjustable by mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/14—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a face layer formed of separate pieces of material which are juxtaposed side-by-side
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/44—Furniture or parts thereof
    • B29L2031/443—Chairs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/02—2 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2479/00—Furniture
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24058—Structurally defined web or sheet [e.g., overall dimension, etc.] including grain, strips, or filamentary elements in respective layers or components in angular relation

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Seats For Vehicles (AREA)
RU2015112033A 2012-10-17 2013-10-10 Кресло и опорные структуры RU2649381C2 (ru)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201261715044P 2012-10-17 2012-10-17
US61/715,044 2012-10-17
PCT/IB2013/059247 WO2014060910A1 (en) 2012-10-17 2013-10-10 A chair and supports

Publications (2)

Publication Number Publication Date
RU2015112033A RU2015112033A (ru) 2016-12-10
RU2649381C2 true RU2649381C2 (ru) 2018-04-02

Family

ID=50487629

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2015112033A RU2649381C2 (ru) 2012-10-17 2013-10-10 Кресло и опорные структуры

Country Status (12)

Country Link
US (1) US10070727B2 (enExample)
EP (1) EP2908698B1 (enExample)
JP (1) JP6403167B2 (enExample)
CN (1) CN104869868B (enExample)
AU (1) AU2013333544B2 (enExample)
CA (1) CA2885577C (enExample)
HK (1) HK1208318A1 (enExample)
MX (1) MX354420B (enExample)
NZ (1) NZ628904A (enExample)
RU (1) RU2649381C2 (enExample)
SG (1) SG11201503010WA (enExample)
WO (1) WO2014060910A1 (enExample)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU213077U1 (ru) * 2022-06-01 2022-08-23 Амир Анварович Фаткуллин Кресло
WO2023234807A1 (ru) * 2022-06-01 2023-12-07 Амир ФАТКУЛЛИН Кресло
WO2024010494A1 (ru) * 2022-07-21 2024-01-11 Амир ФАТКУЛЛИН Кресло
WO2024014990A1 (ru) * 2022-07-25 2024-01-18 Амир Анварович ФАТКУЛЛИН Кресло
WO2023239262A3 (ru) * 2022-06-10 2024-02-01 Амир ФАТКУЛЛИН Регулируемая поясничная поддержка

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ593679A (en) * 2008-12-12 2013-08-30 Formway Furniture Ltd A chair, a support, and components
JP6771278B2 (ja) * 2015-09-09 2020-10-21 株式会社エルゴジャパン 下部仕切り板
US10463153B2 (en) * 2016-06-09 2019-11-05 Steelcase Inc. Seating arrangement
CN109480521A (zh) * 2017-09-10 2019-03-19 浙江玛拉蒂智能家具科技有限公司 一种坐垫大小调节机构及座椅
DE202018100450U1 (de) * 2018-01-26 2019-04-29 König + Neurath AG Sitzmöbel, insbesondere Bürostuhl
CN109009717B (zh) * 2018-08-01 2020-01-14 浙江工贸职业技术学院 一种新型轮椅
CN109239410B (zh) * 2018-10-13 2021-03-26 新昌县钕儒农业科技有限公司 无源带电显示装置
US10870489B2 (en) * 2019-05-24 2020-12-22 B/E Aerospace, Inc. Position adjustable armrest assemblies for passenger seats
US11690457B2 (en) * 2020-02-04 2023-07-04 Hni Technologies Inc. Chair with flexible internal support
FR3112527B1 (fr) * 2020-07-17 2022-12-23 Stelia Aerospace Ossature pour siège d’aéronef constituée de pièces planes découpées et assemblées et son procédé de fabrication
US12419424B2 (en) * 2022-03-08 2025-09-23 Teng-Jen Yang Chair and one-piece chair back thereof
US20230284780A1 (en) * 2022-03-08 2023-09-14 Teng-Jen Yang One-Piece Chair Backs and Chairs Having the Same

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3840269A (en) * 1973-05-23 1974-10-08 Northern Fibre Co Lattice reinforced foam rubber seat bun and method of molding same
US4210814A (en) * 1978-01-09 1980-07-01 Jersey Nuclear-Avco Isotopes, Inc. Control of pyrophoricity in deposits produced by electron beam evaporation of uranium
EP0532476A1 (en) * 1991-09-10 1993-03-17 CO.FE.MO. S.p.A. Chair back stand adjustable for height
WO1999013004A1 (en) * 1997-09-11 1999-03-18 Dsm N.V. Process for producing articles having a soft touch
WO2009126051A1 (en) * 2008-04-08 2009-10-15 Formway Furniture Limited Injection moulding method
RU101623U1 (ru) * 2010-07-28 2011-01-27 Игорь Владимирович Митюков Кресло
EP2364616A1 (en) * 2010-03-09 2011-09-14 Kinnarps Samas GmbH Chair

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3242628A (en) * 1961-06-15 1966-03-29 Chicago Metallic Sash Co Suspended ceiling construction and runner therefor
US3554853A (en) * 1967-11-02 1971-01-12 Plastic Textile Access Ltd Extruded plastic net made of non-cylindrical strands oriented at points remote from bonded areas
US3777432A (en) * 1972-09-18 1973-12-11 Lightolier Inc Collapsibly joined louver grid
US4060950A (en) * 1976-12-08 1977-12-06 National Gypsum Company Concealed clip for hollow strips
GB1595331A (en) * 1977-07-02 1981-08-12 Gilbert M Mesh structures incorporating orientated plastics components
JPH0720677B2 (ja) * 1992-06-18 1995-03-08 有限会社大三金型製作所 プラスチック製網体及びその製造方法
US6029962A (en) 1997-10-24 2000-02-29 Retama Technology Corporation Shock absorbing component and construction method
JP3993375B2 (ja) 2000-10-16 2007-10-17 コクヨ株式会社 椅子
US7441758B2 (en) 2004-06-17 2008-10-28 Illinois Tool Works Inc. Load bearing surface
US7740321B2 (en) 2006-05-12 2010-06-22 Herman Miller, Inc. Suspended pixelated seating structure
NZ597812A (en) 2006-10-04 2013-04-26 Formway Furniture Ltd Back portion for a chair including upper section which folds rearwardly to reduce height of back portion and provide arm rest
EP2120648B1 (en) 2007-01-29 2021-06-16 Herman Miller, Inc. Seating structure and methods for the use thereof
JP4068126B2 (ja) 2007-02-01 2008-03-26 タキロン株式会社 圧縮配向成形体
CN101319496A (zh) * 2007-06-06 2008-12-10 徐益鑫 注塑圈接格栅
US20090140568A1 (en) 2007-10-25 2009-06-04 Eric Ping Pang Chan Body support structure
US20100133893A1 (en) 2008-05-23 2010-06-03 William Raftery Chair having elastic bands for support surfaces and device for securing the bands to the chair
US8128175B2 (en) 2008-06-04 2012-03-06 Herman Miller, Inc. Suspension seating
NZ593679A (en) 2008-12-12 2013-08-30 Formway Furniture Ltd A chair, a support, and components

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3840269A (en) * 1973-05-23 1974-10-08 Northern Fibre Co Lattice reinforced foam rubber seat bun and method of molding same
US4210814A (en) * 1978-01-09 1980-07-01 Jersey Nuclear-Avco Isotopes, Inc. Control of pyrophoricity in deposits produced by electron beam evaporation of uranium
EP0532476A1 (en) * 1991-09-10 1993-03-17 CO.FE.MO. S.p.A. Chair back stand adjustable for height
WO1999013004A1 (en) * 1997-09-11 1999-03-18 Dsm N.V. Process for producing articles having a soft touch
WO2009126051A1 (en) * 2008-04-08 2009-10-15 Formway Furniture Limited Injection moulding method
EP2364616A1 (en) * 2010-03-09 2011-09-14 Kinnarps Samas GmbH Chair
RU101623U1 (ru) * 2010-07-28 2011-01-27 Игорь Владимирович Митюков Кресло

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU213077U1 (ru) * 2022-06-01 2022-08-23 Амир Анварович Фаткуллин Кресло
WO2023234807A1 (ru) * 2022-06-01 2023-12-07 Амир ФАТКУЛЛИН Кресло
RU215522U1 (ru) * 2022-06-10 2022-12-16 Амир Анварович Фаткуллин Регулируемая поясничная поддержка
WO2023239262A3 (ru) * 2022-06-10 2024-02-01 Амир ФАТКУЛЛИН Регулируемая поясничная поддержка
WO2024010494A1 (ru) * 2022-07-21 2024-01-11 Амир ФАТКУЛЛИН Кресло
RU214593U1 (ru) * 2022-07-25 2022-11-07 Амир Анварович Фаткуллин Кресло
WO2024014990A1 (ru) * 2022-07-25 2024-01-18 Амир Анварович ФАТКУЛЛИН Кресло
RU231646U1 (ru) * 2024-09-23 2025-02-04 Амир Анварович Фаткуллин Спинка кресла
RU237374U1 (ru) * 2025-04-16 2025-09-22 Амир Анварович Фаткуллин Обивка спинки с поясничной поддержкой
RU238002U1 (ru) * 2025-04-16 2025-10-15 Амир Анварович Фаткуллин Накидка-чехол на спинку кресла

Also Published As

Publication number Publication date
AU2013333544A1 (en) 2015-04-23
CA2885577C (en) 2020-04-14
US20150250319A1 (en) 2015-09-10
JP6403167B2 (ja) 2018-10-10
CN104869868B (zh) 2018-02-13
EP2908698A4 (en) 2016-10-05
HK1208318A1 (en) 2016-03-04
WO2014060910A1 (en) 2014-04-24
SG11201503010WA (en) 2015-05-28
EP2908698B1 (en) 2017-09-06
MX2015004856A (es) 2015-07-21
AU2013333544B2 (en) 2017-08-17
CN104869868A (zh) 2015-08-26
RU2015112033A (ru) 2016-12-10
NZ628904A (en) 2016-08-26
MX354420B (es) 2018-03-02
EP2908698A1 (en) 2015-08-26
CA2885577A1 (en) 2014-04-24
US10070727B2 (en) 2018-09-11
JP2015532163A (ja) 2015-11-09

Similar Documents

Publication Publication Date Title
RU2649381C2 (ru) Кресло и опорные структуры
RU2518280C2 (ru) Кресло и опорная структура
AU2004245064B2 (en) Comfort surface for seating
CN1822780B (zh) 具有舒适表面的座位
JP6170428B2 (ja) 異形可撓性背もたれ付き着座構造体
US7794022B2 (en) Body support structure having a molded elastomeric member
US7909402B2 (en) Back support for a seat
US7568763B2 (en) Control for seating unit with back stop
CN103052341B (zh) 家具物品
CN101068488B (zh) 座椅装置的控制机构
CN107080382A (zh) 用于座椅的背部支撑件
CN111432687A (zh) 顺应性靠背
MXPA06004090A (en) Seating structure having flexible support surface

Legal Events

Date Code Title Description
MM4A The patent is invalid due to non-payment of fees

Effective date: 20191011