US3790975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air mattress
Assignee: Hutchinson Compagnie National du Cautchouc
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Filing: 1971-03-15
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Granted: 1974-02-12
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Expires: 1991-03-15
Abstract
Abstract An air mattress includes two covers each with a series of longitudinally extending fabric strips secured to the respective inner faces. Opposite corresponding strips are interconnected by partitions which may be continuous with spaced apertures or may be discontinuous.
Inventors
- 👤 W Philipp
- 👤 A Thomas
- 👤 B Fetissof
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:26
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/08; A47C27/081; A47C27/087
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
116 words
An air mattress comprising a first cover sheet, a second cover sheet lying generally parallel to the first cover sheet, a first series of strips of material extending loNgitudinally of the mattress, spaced transversely of the mattress and secured to the first cover, a second series of strips of material extending longitudinally of the mattress, spaced transversely of the mattress and secured to the second cover, and means defining partitions each extending between a respective pair of said opposed strips of said first and second series, each said partition being interrupted along its length by spaced elliptical apertures of a size such that on inflation of the mattress the configuration of both cover sheets is affected.
Claim 2
Dependent Claim
116 words
An air mattress comprising a first cover sheet, a second cover sheet lying generally parallel to the first cover sheet, a first series of strips of material extending loNgitudinally of the mattress, spaced transversely of the mattress and secured to the first cover, a second series of strips of material extending longitudinally of the mattress, spaced transversely of the mattress and secured to the second cover, and means defining partitions each extending between a respective pair of said opposed strips of said first and second series, each said partition being interrupted along its length by spaced elliptical apertures of a size such that on inflation of the mattress the configuration of both cover sheets is affected.
Claim 3
Dependent Claim
21 words
A mattress according to claim 1, wherein the strips of both series are joined to the respective cover sheet by adhesive.
Claim 4
Dependent Claim
16 words
A mattress according to claim 1, wherein each partition is integral with the respective opposed strips.
Claim 5
Dependent Claim
35 words
A mattress according to claim 3, comprising additional strips each contiguous with one of the strips of the first and second series, secured to a respective said cover sheet and to one of the partitions.
Claim 6
Dependent Claim
19 words
A mattress according to claim 1, wherein each aperture lies symmetrically about the longitudinal centre line of the partition.
Claim 7
Dependent Claim
22 words
A mattress according to claim 1, in which the apertures of the partitions are distributed checkerboard-fashion over the mattress as a whole.
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) | 1977-02-11 | 1977-08-13 | 1978-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-11 | 1981-08-13 | 1982-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-11 | 1985-08-13 | 1986-02-12 | $7700.00 | Window Closed / Lapsed |