US4913496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stackable chair and method of manufacture
Assignee: Individual
•
Filing: 1989-03-22
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Granted: 1990-04-03
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Expires: 2009-03-22
Abstract
Abstract A chair comprises a ground supported frame having an upper planar surface. A recess portion is formed in the frame interrupting the upper surface. An L-shaped bracket has a first portion extending parallel to the surface and positioned within the recessed portion and a second portion extending upwardly therefrom generally transverse thereto. The first portion is secured within the recessed portion.
Inventors
- 👤 George V. Oke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:35
CPC Classifications
A; A47; A47C; A47C3/00; A47C3/04
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
124 words
A seating structure, comprising: (a) a ground supported frame having an upper planar surface; (b) a recessed portion in said frame interrupting said upper surface; (c) an L-shaped bracket means has a first portion extending parallel to said surface and positioned within said recessed portion and a second portion extending upwardly therefrom generally perpendicular thereto; (d) means for securing said first portion in said recessed portion; (e) said recessed portion including two spaced parallel ribs extending parallel to said upper surface; (f) each of said ribs including an upper flat surface, said flat surface of each of said ribs lie on a common plane; (g) said frame including a portion having a longitudinal axis; and (h) said ribs extending parallel to said longitudinal axis.
Claim 2
Dependent Claim
124 words
A seating structure, comprising: (a) a ground supported frame having an upper planar surface; (b) a recessed portion in said frame interrupting said upper surface; (c) an L-shaped bracket means has a first portion extending parallel to said surface and positioned within said recessed portion and a second portion extending upwardly therefrom generally perpendicular thereto; (d) means for securing said first portion in said recessed portion; (e) said recessed portion including two spaced parallel ribs extending parallel to said upper surface; (f) each of said ribs including an upper flat surface, said flat surface of each of said ribs lie on a common plane; (g) said frame including a portion having a longitudinal axis; and (h) said ribs extending parallel to said longitudinal axis.
Claim 3
Dependent Claim
37 words
The structure of claim 1, wherein said means for securing includes: (a) a seat overlying said first portion and secured to said upper surface; and, (b) means extending from said first portion in engagement with said seat.
Claim 4
Dependent Claim
20 words
The structure of claim 1, wherein: (a) said recessed portion includes a downwardly disposed arcuate portion interconnecting said flat surfaces.
Claim 5
Dependent Claim
51 words
The structure of claim 1, wherein said frame comprises: (a) a tubular support providing said upper surface; (b) first and second spaced side supports, each of said side supports is secured to said tubular support at an upper portion thereof; and, (c) said recessed portion is disposed between said side supports.
Claim 6
Dependent Claim
15 words
The structure of claim 1, wherein: (a) said L-shaped bracket means is comprised of metal.
Claim 7
Dependent Claim
37 words
The structure of claim 5, wherein: (a) said metal bracket means has first and second spaced exterior major surfaces, and a plurality of spaced parallel ribs are formed in each major surface for strengthening said bracket means.
Claim 8
Dependent Claim
26 words
The structure of claim 6, wherein: (a) said first and second portions have arcuate portions, and the associated first and second major surfaces are correspondingly curved.
Claim 9
Dependent Claim
27 words
The structure of claim 5, wherein: (a) said bracket means is comprised of tempered aluminum so that said second portion may flex relative to said first portion.
Claim 10
Dependent Claim
41 words
The structure of claim 1, wherein: (a) the distance between said flat surfaces and said upper surface is not less than the thickness of said bracket first portion so that said bracket first portion is not disposed above said upper surface.
Claim 11
Dependent Claim
216 words
A chair, comprising: (a) a tubular rectangular support having an upper planar surface and spaced side surfaces extending downwardly therefrom; (b) first and second tubular support legs, said support legs secured to said tubular support along opposite sides thereof along an opposite portion of each support leg; (c) a recessed portion disposed in said support intermediate said support legs, said recess portion extending through and between the associated side surfaces for thereby interrupting said upper surface; (d) a seat cushion; (e) an L-shaped flexible bracket, a first portion of said bracket is secured to said cushion and a second portion thereof extends upwardly therefrom and generally perpendicular thereto; (f) said first portion positioned in said recessed portion so that said first portion extends parallel to said upper surface and said cushion rests on said upper surface; (g) a back cushion secured to said second portion; (h) said recessed portion including first and second spaced parallel ribs extending parallel to said upper planar surface, each of said ribs is proximate an associated side surface; (i) each of said ribs including an upper flat surface, said flat surface of each of said ribs lie on a common plane; (j) said support including a portion having a longitudinal axis; and (k) said ribs extending parallel to said longitudinal axis.
Claim 12
Dependent Claim
216 words
A chair, comprising: (a) a tubular rectangular support having an upper planar surface and spaced side surfaces extending downwardly therefrom; (b) first and second tubular support legs, said support legs secured to said tubular support along opposite sides thereof along an opposite portion of each support leg; (c) a recessed portion disposed in said support intermediate said support legs, said recess portion extending through and between the associated side surfaces for thereby interrupting said upper surface; (d) a seat cushion; (e) an L-shaped flexible bracket, a first portion of said bracket is secured to said cushion and a second portion thereof extends upwardly therefrom and generally perpendicular thereto; (f) said first portion positioned in said recessed portion so that said first portion extends parallel to said upper surface and said cushion rests on said upper surface; (g) a back cushion secured to said second portion; (h) said recessed portion including first and second spaced parallel ribs extending parallel to said upper planar surface, each of said ribs is proximate an associated side surface; (i) each of said ribs including an upper flat surface, said flat surface of each of said ribs lie on a common plane; (j) said support including a portion having a longitudinal axis; and (k) said ribs extending parallel to said longitudinal axis.
Claim 13
Dependent Claim
45 words
The chair of claim 10, wherein: (a) said upper flat surfaces of said ribs are spaced from said upper surface by a distance not less than the thickness of said first portion so that said first portion does not extend upwardly beyond said upper surface.
Claim 14
Dependent Claim
37 words
The chair of claim 10, wherein: (a) said bracket is comprised of metal and has spaced first and second major surfaces; and, (b) a plurality of ribs are disposed in each major surface for strengthening said bracket.
Claim 15
Dependent Claim
48 words
The chair of claim 12, wherein: (a) said bracket includes first and second side surfaces; and, (b) a portion of each bracket portion is arcuate between said first and second side surfaces in order to place the associated bracket portion under tension when secured to the associated cushion.
Claim 16
Dependent Claim
14 words
The chair of claim 12, wherein: (a) said bracket is comprised of tempered aluminum.
Claim 17
Dependent Claim
18 words
The chair of claim 11, wherein: (a) a downwardly disposed arcuate section extends between said upper flat surfaces.
References Cited (Backward Citations)
US1674220A
Cited
US2456794A
Cited
US2408337A
Cited
US2467664A
Cited
US2558022A
Cited
GB745871A
Cited
US3000669A
Cited
US3111344A
Cited
US4066295A
Cited
US4113312A
Cited
GB2072004A
Cited
US4768833A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-04-02 | 1993-10-02 | 1994-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-02 | 1997-10-02 | 1998-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-02 | 2001-10-02 | 2002-04-03 | $7700.00 | Window Closed / Lapsed |