US4274412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tampon containing blended superabsorbent material
Assignee: Kimberly Clark Worldwide Inc
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Filing: 1979-10-22
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Granted: 1981-06-23
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Expires: 1999-10-22
Abstract
Abstract A tampon is provided having an absorbent core made of a plurality of discrete plies of a blend of cellulosic material and superabsorbent fibers and having an absorbent layer overwrap and a fluid permeable cover surrounding the absorbent material. The absorbent layer is located on both the top and bottom surfaces of the absorbent core and contains staple textile fibers.
Inventors
- 👤 Jared A. Austin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:43
CPC Classifications
A; A61; A61L; A61L15/00; A61L15/16; A61L15/42; A61L15/60; A61F; A61F13/00; A61F13/15; A61F13/20; A61F13/2051; A61L15/22; A61L15/28; Y; Y10; Y10S; Y10S604/00; Y10S604/904
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
85 words
A tampon comprising in combination: (a) an absorbent core including a plurality of discrete essentially planar, abutting plies of a compressed blend of superabsorbent fibers and short cellulosic fibers selected from the class consisting of wood pulp fibers and cotton linters; (b) an absorbent layer located on the bottom and the top of said core having textile length fibers; (c) a fluid permeable outer cover surrounding the top and sides of the absorbent surfaces; and (d) withdrawal means attached to one end of the tampon.
Claim 2
Dependent Claim
85 words
A tampon comprising in combination: (a) an absorbent core including a plurality of discrete essentially planar, abutting plies of a compressed blend of superabsorbent fibers and short cellulosic fibers selected from the class consisting of wood pulp fibers and cotton linters; (b) an absorbent layer located on the bottom and the top of said core having textile length fibers; (c) a fluid permeable outer cover surrounding the top and sides of the absorbent surfaces; and (d) withdrawal means attached to one end of the tampon.
Claim 3
Dependent Claim
21 words
The tampon according to claim 1 in which the cover is a bag completely enclosing the absorbent core and absorbent layer.
Claim 4
Dependent Claim
17 words
The tampon according to claim 1 in which the absorbent layer has at least 20% textile fibers.
Claim 5
Dependent Claim
26 words
The tampon according to claim 1, 2 or 3 in which the compressed thickness of each discrete layer of the absorbent core is about 0.05 inch.
Claim 6
Dependent Claim
22 words
The tampon according to claim 1, 2 or 3 in which there are between 5 and 8 plies in the absorbent core.
Claim 7
Dependent Claim
21 words
The tampon according to claim 1, 2 or 3 in which the absorbent layer surrounds the sides of the absorbent core.
Claim 8
Dependent Claim
28 words
The tampon according to claim 1, 2 or 3 in which superabsorbent is present at an amount not greater than 30% by weight of the absorbent core plies.
Claim 9
Dependent Claim
18 words
The tampon according to claim 1, 2 or 3 in which the absorbent layer consists essentially of rayon.
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) | 1984-06-22 | 1984-12-22 | 1985-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-22 | 1988-12-22 | 1989-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-22 | 1992-12-22 | 1993-06-23 | $7700.00 | Window Closed / Lapsed |