Patent US3874726A successfully refreshed from Google Patents.
US3874726A
Expired / Lapsed
US
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Moulded chairs
Assignee: Sebel Ltd
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Filing: 1973-04-27
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Granted: 1975-04-01
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Expires: 1993-04-27
Abstract
Abstract A chair moulded in one piece from a suitable plastics material stacks vertically, and has a seating area nearly as great as the plan area of the seat, by waisting the back support at its junction with the seat and rear legs, providing the rear legs with an internally directed channel over the greater part of their length which merges at the tops of the legs into the said waisted portion, and making the side edges of the legs in the side planes of the chair substantially vertical.
Inventors
- 👤 Harry Sebel
- 👤 Dillon Charles Furey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:15
CPC Classifications
A; A47; A47C; A47C3/00; A47C3/04; A47C5/00; A47C5/12
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
147 words
A chair stackable and rowable with an alike chair, comprising a single body moulded from plastic material and defining a back support, a seat, rear legs and front legs; the rear and front legs having side edges which define lower parts of side planes of the chair and said edges and planes being substantially vertical to facilitate rowing of the chair with an alike chair; each year and front leg defining a channel which, in cross-section, is convex toward the inside of the chair, over an upper and at least a greater part of its length, for receiving a corresponding channel-like rear leg of an alike chair stacked thereon; the back support having contracted waist portions adjacent the seat and the rear legs, and the channel defined by the rear legs having top end portions merging into respective, contracted waist portions to facilitate stacking of the chair.
Claim 2
Dependent Claim
147 words
A chair stackable and rowable with an alike chair, comprising a single body moulded from plastic material and defining a back support, a seat, rear legs and front legs; the rear and front legs having side edges which define lower parts of side planes of the chair and said edges and planes being substantially vertical to facilitate rowing of the chair with an alike chair; each year and front leg defining a channel which, in cross-section, is convex toward the inside of the chair, over an upper and at least a greater part of its length, for receiving a corresponding channel-like rear leg of an alike chair stacked thereon; the back support having contracted waist portions adjacent the seat and the rear legs, and the channel defined by the rear legs having top end portions merging into respective, contracted waist portions to facilitate stacking of the chair.
Claim 3
Dependent Claim
52 words
A chair as claimed in claim 1 wherein said channelshaped cross-sections defined by the legs extend, and have diminishing cross-sections, from the top of each leg downwards to adjacent a lower end of the leg; a portion of the leg adjacent the lower end being a solid piece of said plastic material.
Claim 4
Dependent Claim
61 words
A chair as claimed in claim 1 wherein an outward projection extends across the channel of each leg adjacent the top of the leg, and each leg has internal substantially vertical rib means, near its top, for resting the lower ends of the rib means of one chair on the outward projections of a lower chair when the chairs are stacked.
Claim 5
Dependent Claim
27 words
A chair as claimed in claim 1 in which the seat has downwardly extending front and rear skirts and the legs have flanges merging with said skirts.
References Cited (Backward Citations)
US2541835A
Cited
US2936826A
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US3165355A
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US3586371A
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US3637256A
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US3784254A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-31 | 1978-09-30 | 1979-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-31 | 1982-09-30 | 1983-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-31 | 1986-09-30 | 1987-04-01 | $7700.00 | Window Closed / Lapsed |