Patent US3857121A successfully refreshed from Google Patents.
US3857121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sofa beds
Assignee: Individual
•
Filing: 1973-04-02
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Granted: 1974-12-31
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Expires: 1993-04-02
Abstract
Abstract In a sofa bed including a seat frame and a backrest frame including a seat mattress mounted on the seat frame and a backrest mattress mounted on the backrest frame, the provision of recesses between the side and front edge portions of the mattresses and the frames for receiving a contour sheet or other sheet or bedding in the recesses.
Inventors
- 👤 W Rogers
- 👤 M Snitzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:31
CPC Classifications
A; A47; A47C; A47C17/00; A47C17/04; A47C17/16; A47C17/17; A47C17/175; A47C17/1756
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
248 words
In a sofa bed including, a seat, a backrest movably connected to the seat for movement between an upright position extending upwardly at an angle to the seat for use as a sofa and a generally horizontal position extending generally coplanar with the seat for use as a bed, said seat including a frame extending generally in a horizontal plane, a mattress overlying the frame, and connecting means interconnecting the mattress to the frame at a point under the mattress and spaced inwardly from the front edge portions of the mattress to define a recess between the mattress and the front edge portions of the frame for receiving a bedding sheet or the like covering the mattress and tucked into said recess, and wherein said connecting means extends continuously along the front and sides of the mattress and frame but spaced inwardly from the edges thereof to define a continuous recess along the front and sides thereof for receiving a sheet in the recess, and wherein said backrest includes a frame and a mattress loosely positioned on said backrest frame when the backrest is in horizontal position for use as a bed, said backrest mattress being removable from the backrest for placement on the seat mattress when the backrest is in the upright position for use as a sofa, and wherein said seat and backrest mattresses have a generally rectangular shape with the depth of the mattresses at each of the corners thereof being of the same dimension.
Claim 2
Dependent Claim
248 words
In a sofa bed including, a seat, a backrest movably connected to the seat for movement between an upright position extending upwardly at an angle to the seat for use as a sofa and a generally horizontal position extending generally coplanar with the seat for use as a bed, said seat including a frame extending generally in a horizontal plane, a mattress overlying the frame, and connecting means interconnecting the mattress to the frame at a point under the mattress and spaced inwardly from the front edge portions of the mattress to define a recess between the mattress and the front edge portions of the frame for receiving a bedding sheet or the like covering the mattress and tucked into said recess, and wherein said connecting means extends continuously along the front and sides of the mattress and frame but spaced inwardly from the edges thereof to define a continuous recess along the front and sides thereof for receiving a sheet in the recess, and wherein said backrest includes a frame and a mattress loosely positioned on said backrest frame when the backrest is in horizontal position for use as a bed, said backrest mattress being removable from the backrest for placement on the seat mattress when the backrest is in the upright position for use as a sofa, and wherein said seat and backrest mattresses have a generally rectangular shape with the depth of the mattresses at each of the corners thereof being of the same dimension.
Claim 3
Dependent Claim
44 words
The sofa bed defined in claim 1 wherein said connecting means includes a sheet overlying said frame and fixed to the frame, and attaching means attaching said sheet to an underportion of said mattress located inwardly from the front edge portions of the mattress.
Claim 4
Dependent Claim
13 words
The sofa bed defined in claim 2 wherein said attaching means are stitches.
Claim 5
Dependent Claim
205 words
A frame and mattress assembly for use in a sofa bed comprising in combination, a frame adapted to be placed in a horizontal position when in use as a sofa bed, a mattress overlying and generally coextensive with said frame, and connecting means interconnecting an underportion of said mattress and a portion of the frame at a location spaced inwardly from the edge portions thereof to define a recess between the edge portions of the mattress and frame for receiving a bedding sheet or the like to be tucked under the mattress, a second frame connected to said first frame for movement between an upright position and a horizontal position, a second mattress adapted to rest on the second frame in coplanar relationship with the first mattress for use as a bed, said second mattress adapted to be placed in overlying relationship on the second mattress for use as a sofa, said first and second mattresses having the same depth dimension throughout the peripheral portions thereof, and wherein said connecting means includes a frame sheet overlying the first frame and secured to said first frame below said fIrst mattress, and attachment means engaging bottom portions of the first mattress and portions of said frame sheet.
Claim 6
Dependent Claim
205 words
A frame and mattress assembly for use in a sofa bed comprising in combination, a frame adapted to be placed in a horizontal position when in use as a sofa bed, a mattress overlying and generally coextensive with said frame, and connecting means interconnecting an underportion of said mattress and a portion of the frame at a location spaced inwardly from the edge portions thereof to define a recess between the edge portions of the mattress and frame for receiving a bedding sheet or the like to be tucked under the mattress, a second frame connected to said first frame for movement between an upright position and a horizontal position, a second mattress adapted to rest on the second frame in coplanar relationship with the first mattress for use as a bed, said second mattress adapted to be placed in overlying relationship on the second mattress for use as a sofa, said first and second mattresses having the same depth dimension throughout the peripheral portions thereof, and wherein said connecting means includes a frame sheet overlying the first frame and secured to said first frame below said fIrst mattress, and attachment means engaging bottom portions of the first mattress and portions of said frame sheet.
Claim 7
Dependent Claim
30 words
The combination defined in claim 4 wherein said frame sheet extends over edge portions of said frame and under said frame and is attached under said frame to said frame.
Claim 8
Dependent Claim
13 words
The combination defined in claim 5 wherein said attachment means includes stitched material.
Claim 9
Dependent Claim
17 words
The combination defined in claim 4 wherein said frame and said mattress have a generally rectangular shape.
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) | 1977-12-30 | 1978-07-01 | 1978-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-30 | 1982-07-01 | 1982-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-30 | 1986-07-01 | 1986-12-31 | $7700.00 | Window Closed / Lapsed |