US3840909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mattress support
Assignee: Lee Raymond Organization Inc
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Filing: 1973-03-28
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Granted: 1974-10-15
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Expires: 1993-03-28
Abstract
Abstract In combination with a bed having a horizontal rectangular frame with side and end pieces and a mattress resting on top: first and second vertical members; first and second clamp means, each means being detachably secured to a corresponding side piece, both means being disposed adjacent a corresponding end, each means being adapted to slidably receive a corresponding member and to lock same in any desired position whereby the heights of the top ends of the members can be adjusted as necessary; and a flat rectangular plate spanning the side pieces with one end resting thereon and extending therebetween, the other end of the plate being pivotally secured to the top ends of both members.
Inventors
- 👤 M Detko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:45
CPC Classifications
A; A47; A47C; A47C20/00; A47C20/04; A47C20/047
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
In combination with a bed having a horizontal rectangular frame with horizontal side and end pieces and a mattress resting on top: first and second vertical elongated members; first and second clamp means, each clamp means employing a manually operable locking device controlled by a thumb screw, each clamp means being detachably secured to a corresponding side piece, both clamp means being disposed adjacent a corresponding end, each clamping means slidably receiving a corresponding member and locking same at any desired position to enable the heights of the top ends of the members to be adjusted as necessary; a flat rectangular plate spanning the side pieces with one end resting thereon and extending therebetween, the other end of the plate being pivotally secured to the top ends of both members; and cooperating roller means including sliding rollers secured to said one end of the plate and the side pieces to maintain said one plate in slidable yet secured position.
Claim 2
Dependent Claim
159 words
In combination with a bed having a horizontal rectangular frame with horizontal side and end pieces and a mattress resting on top: first and second vertical elongated members; first and second clamp means, each clamp means employing a manually operable locking device controlled by a thumb screw, each clamp means being detachably secured to a corresponding side piece, both clamp means being disposed adjacent a corresponding end, each clamping means slidably receiving a corresponding member and locking same at any desired position to enable the heights of the top ends of the members to be adjusted as necessary; a flat rectangular plate spanning the side pieces with one end resting thereon and extending therebetween, the other end of the plate being pivotally secured to the top ends of both members; and cooperating roller means including sliding rollers secured to said one end of the plate and the side pieces to maintain said one plate in slidable yet secured position.
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) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |