US3866976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sitting furniture and structural units therefor
Assignee: Individual
•
Filing: 1973-08-08
•
Granted: 1975-02-18
•
Expires: 1993-08-08
Abstract
Abstract A structural unit for use in a piece of sitting furniture as back rest and lateral parts comprises three integrally formed panel section, viz, a substantially vertical upper panel section, a substantially vertical lower panel section for supporting the unit from the floor, and a horizontal shelf panel section extending between the lower edge of the upper panel section and the upper edge of the lower panel section for forming a support for a seat frame, said shelf panel section having the outline of an isosceles trapezoid, the long base of which is the merging line between the shelf panel section and the upper panel section, the short base of which is the merging line between the shelf panel section and the lower panel section, and the non-parallel sides of which form an angle of substantially 45* with the long base of the trapezoid. A piece of sitting furniture comprises at least one such structural unit and a seat frame supported on and connected to the shelf panel section of such structural unit.
Inventors
- 👤 Folke E H Ohlsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:59
CPC Classifications
A; A47; A47C; A47C13/00; A47C13/005; A47C4/00; A47C4/02; A47C4/028
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
193 words
A structural unit for use in a piece of sitting furniture as back rest and lateral parts, comprising three integrally formed panel sections, viz, an upper panel section having substantially rectangular outline, an intermediate shelf panel section protruding at substantially right angles from said upper panel section and having substantially the outline of an isosceles trapezoid, the long base of which is the merging line between said intermediate shelf panel section and said upper panel section, and the non-parallel sides of which form an angle of substantially 45* with the long base of the isosceles trapezoid, and a lower panel section having substantially rectangular outline and protruding at substantially right angles from said intermediate shelf panel section, the merging line between said intermediate shelf panel section and said lower panel section forming one of the long sides of the rectangular outline of said lower panel section and the short base of the isosceles trapezoid outline of said intermediate shelf panel section, means on said lower panel section for supporting the structural unit on the floor, and connecting means on said shelf panel section for fastening a seat frame on said shelf panel section.
Claim 2
Dependent Claim
193 words
A structural unit for use in a piece of sitting furniture as back rest and lateral parts, comprising three integrally formed panel sections, viz, an upper panel section having substantially rectangular outline, an intermediate shelf panel section protruding at substantially right angles from said upper panel section and having substantially the outline of an isosceles trapezoid, the long base of which is the merging line between said intermediate shelf panel section and said upper panel section, and the non-parallel sides of which form an angle of substantially 45* with the long base of the isosceles trapezoid, and a lower panel section having substantially rectangular outline and protruding at substantially right angles from said intermediate shelf panel section, the merging line between said intermediate shelf panel section and said lower panel section forming one of the long sides of the rectangular outline of said lower panel section and the short base of the isosceles trapezoid outline of said intermediate shelf panel section, means on said lower panel section for supporting the structural unit on the floor, and connecting means on said shelf panel section for fastening a seat frame on said shelf panel section.
Claim 3
Dependent Claim
67 words
A structural unit according to claim 1, further comprising elongated reinforcement flanges integrally formed with said panel sections and extending across said intermediate shelf panel section and along portions of said upper and lower panel sections adjoining said shelf panel section, said flanges having edge portions lying in a plane parallel to and spaced from said shelf panel section for forming a support for the seat frame.
Claim 4
Dependent Claim
50 words
A structural unit according to claim 1, further comprising means forming a slot in said upper panel section, said slot extending from the edge of said upper panel remote from said shelf panel section in a direction towards said shelf panel section for engagement with a button on a cushion.
Claim 5
Dependent Claim
179 words
A piece of sitting furniture comprising a seat frame and at least one structural unit, said unit comprising three integrally formed panel sections, viz, a substantially vertical upper panel section having substantially rectangular outline, a substantially horizontal intermediate shelf panel section protruding from the lower end of said upper panel section and having substantially the outline of an isosceles trapezoid, the long base of which is the merging line between said shelf panel section and said upper panel section, and the non-parallel sides of which form an angle of substantially 45* with the long base of the isosceles trapezoid, and a substantially vertical lower panel section having substantially rectangular outline, the merging line between said shelf panel section and said lower panel section forming one of the long sides of the rectangular outline of said lower panel section and the short base of the isosceles trapezoid outline of said shelf panel section, means on said lower panel section for supporting said structural unit from the floor, and connecting means for fastening said seat frame on said shelf panel section.
Claim 6
Dependent Claim
179 words
A piece of sitting furniture comprising a seat frame and at least one structural unit, said unit comprising three integrally formed panel sections, viz, a substantially vertical upper panel section having substantially rectangular outline, a substantially horizontal intermediate shelf panel section protruding from the lower end of said upper panel section and having substantially the outline of an isosceles trapezoid, the long base of which is the merging line between said shelf panel section and said upper panel section, and the non-parallel sides of which form an angle of substantially 45* with the long base of the isosceles trapezoid, and a substantially vertical lower panel section having substantially rectangular outline, the merging line between said shelf panel section and said lower panel section forming one of the long sides of the rectangular outline of said lower panel section and the short base of the isosceles trapezoid outline of said shelf panel section, means on said lower panel section for supporting said structural unit from the floor, and connecting means for fastening said seat frame on said shelf panel section.
Claim 7
Dependent Claim
62 words
A piece of sitting furniture according to claim 4, further comprising elongated reinforcement flanges integrally formed with said panel sections and extending across said intermediate shelf panel section and along portions of said upper anD lower panel section adjoining said shelf panel section, said flanges having horizontal edge portions above said shelf panel section for forming a support for said seat frame.
Claim 8
Dependent Claim
60 words
A piece of sitting furniture according to claim 4, further comprising means forming a slot in said upper panel section, said slot extending downwards from the upper edge of said upper panel section, a cushion resting against one side of said upper panel section, and button means on said cushion in engagement with the slot of said upper panel section.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |