Patent US3740774A successfully refreshed from Google Patents.
US3740774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sofa bed
Assignee: Burris Industries Inc
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Filing: 1972-02-09
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Granted: 1973-06-26
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Expires: 1992-02-09
Abstract
Abstract A sofa bed formed of two rectangular blocks of foam hingedly connected together by the covering and readily convertible from a sofa to a single bed or double bed as desired.
Inventors
- 👤 L Powell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:21
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/22; A47C17/00; A47C17/04; A47C17/045
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
107 words
A sofa bed comprising a pair of substantially equally dimensioned blocks of soft resilient foam each of a rectangular size corresponding to a single bed and each having a thickness of at least about eight inches and normally positioned in overlying relation for forming a sofa of normal seating height with the underlying block resting on a floor, and a covering separately covering each block of foam and hingedly connecting the blocks of foam together along corresponding side edges so that the blocks of foam may be positioned in side by side relation for forming a double bed with both blocks of foam resting on the floor.
Claim 2
Dependent Claim
107 words
A sofa bed comprising a pair of substantially equally dimensioned blocks of soft resilient foam each of a rectangular size corresponding to a single bed and each having a thickness of at least about eight inches and normally positioned in overlying relation for forming a sofa of normal seating height with the underlying block resting on a floor, and a covering separately covering each block of foam and hingedly connecting the blocks of foam together along corresponding side edges so that the blocks of foam may be positioned in side by side relation for forming a double bed with both blocks of foam resting on the floor.
Claim 3
Dependent Claim
22 words
A sofa bed according to claim 1 wherein each of the blocks of foam is integral and of substantially uniform density throughout.
Claim 4
Dependent Claim
20 words
A sofa bed according to claim 1 wherein pillows rest upon the uppermost block of foam and form a backrest.
Claim 5
Dependent Claim
66 words
A sofa bed according to claim 1 wherein said covering hingedly connects the pair of blocks together so that the terminal ends of the hinged connection are spaced inwardly from the ends of the pair of blocks of foam for facilitating movement of the blocks of foam from an overlying relation to a side by side relation without rupturing the covering hingedly connecting the same together.
Claim 6
Dependent Claim
43 words
A sofa bed according to claim 1, wherein the central upper portion of the uppermost block of foam, which serves as the seat for the sofa, has a relatively shallow recess therein, and soft fibrous material filling said recess for enhanced seating comfort.
Claim 7
Dependent Claim
36 words
A sofa bed according to claim 5 wherein, a plurality of spaced fasteners extend through said fibrous material to compress the same at localized areas for added stability thereof and to present a quilted effect thereto.
Claim 8
Dependent Claim
147 words
A sofa bed comprising a pair of substantially equally dimensioned blocks of soft resilient foam each of a rectangular size corresponding to a single bed and normally positioned in overlying relation for forming a sofa with the undErlying block resting on a floor, each of said blocks of foam being integral and of substantial uniform foam density throughout and also having a thickness of at least about eight inches, and a covering separately covering each block of foam and hingedly connecting the blocks of foam together along corresponding side edges so that the blocks of foam may be positioned in side by side relation for forming a double bed with both blocks of foam resting on the floor, said covering hingedly connecting said blocks of foam together so that the terminal ends of the hinged connection are spaced inwardly from the ends of the blocks of foam.
Claim 9
Dependent Claim
147 words
A sofa bed comprising a pair of substantially equally dimensioned blocks of soft resilient foam each of a rectangular size corresponding to a single bed and normally positioned in overlying relation for forming a sofa with the undErlying block resting on a floor, each of said blocks of foam being integral and of substantial uniform foam density throughout and also having a thickness of at least about eight inches, and a covering separately covering each block of foam and hingedly connecting the blocks of foam together along corresponding side edges so that the blocks of foam may be positioned in side by side relation for forming a double bed with both blocks of foam resting on the floor, said covering hingedly connecting said blocks of foam together so that the terminal ends of the hinged connection are spaced inwardly from the ends of the blocks of foam.
Claim 10
Dependent Claim
43 words
A sofa bed according to claim 7 wherein the central upper portion of the uppermost block of foam, which serves as the seat for the sofa; has a relatively shallow recess therein, and soft fibrous material filling said recess for enhanced seating comfort.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |