US4880419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Absorbent article with internal wicking means
Assignee: JPMorgan Chase Bank NA
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Filing: 1988-12-14
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Granted: 1989-11-14
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Expires: 2008-12-14
Abstract
Abstract An absorbent article comprising at least two discrete superabsorbent containing layers and a wicking means extending about and between the superabsorbent containing layers.
Inventors
- 👤 Irving S. Ness
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:39
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/53; A61F13/534; A61F13/53409; A61F13/53427; A61F13/537; A61F13/53708; B; B32; B32B; B32B5/00; B32B5/22; A61F13/15203; A61F2013/15284; A61F2013/15487; A61F2013/530131; A61F2013/530335; A61F2013/530343; A61F2013/53035; A61F2013/530481; A61F2013/530802; A61F2013/53445; A61F2013/53721; A61F2013/53765; A61F2013/53786
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
24 words
An absorbent article comprising at least two discrete superabsorbent containing layers and a continuous wicking means extending about and between the superabsorbent containing layers.
Claim 2
Dependent Claim
24 words
An absorbent article comprising at least two discrete superabsorbent containing layers and a continuous wicking means extending about and between the superabsorbent containing layers.
Claim 3
Dependent Claim
56 words
An absorbent article as in claim 1 wherein said wicking means comprises a wicking layer and a fluid transfer means between the wicking layer and each discrete superabsorbent containing layer, said fluid transfer means being adapted to drain liquid from the wicking layer and make it available to the superabsorbent material in the superabsorbent containing layer.
Claim 4
Dependent Claim
25 words
An absorbent article as in claim 2 wherein said wicking means comprises a fluid transfer means having a higher capillary pressure than the wicking layer.
Claim 5
Dependent Claim
21 words
An absorbent article as in claim 1 wherein said superabsorbent containing layers comprise a superabsorbent material dispersed within a fibrous layer.
Claim 6
Dependent Claim
22 words
An absorbent article as in claim 1 wherein said superabsorbent containing layers comprise a superabsorbent material dispersed within a cellular foam material.
Claim 7
Dependent Claim
18 words
An absorbent article as in claim 1 wherein said superabsorbent containing layers comprise a film comprising superabsorbent material.
Claim 8
Dependent Claim
24 words
An absorbent article as in claim 1 wherein said wicking layer comprises an acrylic fiber fabric, wood pulp fibers, peat moss, or tissue material.
Claim 9
Dependent Claim
15 words
An absorbent article as in claim 1 wherein said fluid transfer means comprises tissue material.
Claim 10
Dependent Claim
17 words
An absorbent article as in claim 1 further comprising a partial outer wrap of fluid impermeable material.
Claim 11
Dependent Claim
30 words
A disposable diaper comprising a backing sheet, at least two adhesive tape tabs affixed to said backing sheet, and the absorbent article of claim 1 affixed to said backing sheet.
Claim 12
Dependent Claim
21 words
An absorbent article as in claim 1 wherein said superabsorbent containing layers comprise a superabsorbent material dispersed upon a fibrous layer.
Claim 13
Dependent Claim
20 words
An absorbent article according to claim 2 wherein said fluid transfer means comprises a layer coextensive with said wicking layer.
Claim 14
Dependent Claim
23 words
An absorbent article according to claim 2 wherein said wicking means comprises a wicking layer incorporated between two layers of fluid transfer means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-11-13 | 1993-05-15 | 1993-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-13 | 1997-05-15 | 1997-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-13 | 2001-05-15 | 2001-11-14 | $7700.00 | Window Closed / Lapsed |