US5129893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sanitary napkin
Assignee: Essity Hygiene and Health AB
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Filing: 1987-12-17
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Granted: 1992-07-14
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Expires: 2007-12-17
Abstract
Abstract The present invention relates to a sanitary napkin consisting of an absorbent core (1) surrounded by a casing built up of two surface layers which are joined together around the absorbent core and of which surface layers the one facing the wearer's body is liquid permeable whereas the other one (2) is liquid impermeable. According to the invention, elastic means (5,6) are applied to the liquid impermeable surface layer (2). The resiliency afforded to the sanitary napkin in this manner will urge the napkin in its applied condition to press against the outer genitals of the wearer.
Inventors
- 👤 Agneta Thoren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:15
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/45; A61F13/47; A61F13/472; A61F13/49; A61F13/51; A61F13/514; A61F13/51401; A61F2013/51409; A61F13/53; A61F13/534; A61F2013/53445
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
133 words
A sanitary napkin consisting of an absorbent core (1) which is enclosed in a casing composed of two surface layers (2,3) joined together around the absorbent core and of which the surface layer (3) facing the wearer's body is liquid permeable, whereas the other layer (2) is liquid impermeable, characterized in that elastic means (5,6) are applied to the liquid impermeable surface layer (2), and that the elastic means are prestretched and intended to resiliently distort the sanitary napkin such that the side thereof facing the wearer's outer genitals will assume a convex shape, this shape being flattened out on the occurrence of contact pressure against the napkin but resiliently resuming its curved shape for pressing the convex surface against the outer genitals of the wearer when the contact pressure is momentarily suspended.
Claim 2
Dependent Claim
133 words
A sanitary napkin consisting of an absorbent core (1) which is enclosed in a casing composed of two surface layers (2,3) joined together around the absorbent core and of which the surface layer (3) facing the wearer's body is liquid permeable, whereas the other layer (2) is liquid impermeable, characterized in that elastic means (5,6) are applied to the liquid impermeable surface layer (2), and that the elastic means are prestretched and intended to resiliently distort the sanitary napkin such that the side thereof facing the wearer's outer genitals will assume a convex shape, this shape being flattened out on the occurrence of contact pressure against the napkin but resiliently resuming its curved shape for pressing the convex surface against the outer genitals of the wearer when the contact pressure is momentarily suspended.
Claim 3
Dependent Claim
22 words
A sanitary napkin according to claim 1, characterized in that the elastic means (6) extend in the transverse direction of the napkin.
Claim 4
Dependent Claim
28 words
A sanitary napkin according to claim 1, characterized in that the elastic means (5,6) extend in the longitudinal as well as in the transverse direction of the napkin.
Claim 5
Dependent Claim
72 words
A sanitary napkin comprising: (a) an absorbent element having longitudinally extending sides, transverse ends, a body-facing side covered by a fluid pervious member, and an undergarment facing side covered by fluid impervious backing layer, and (b) an elastic strip disposed in tension transversely across said absorbent element and affixed to said napkin at at least two points to impart a convex shape toward the body of the user to said body-facing side.
Claim 6
Dependent Claim
72 words
A sanitary napkin comprising: (a) an absorbent element having longitudinally extending sides, transverse ends, a body-facing side covered by a fluid pervious member, and an undergarment facing side covered by fluid impervious backing layer, and (b) an elastic strip disposed in tension transversely across said absorbent element and affixed to said napkin at at least two points to impart a convex shape toward the body of the user to said body-facing side.
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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) | 1995-07-14 | 1996-01-13 | 1996-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-07-14 | 2000-01-13 | 2000-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-07-14 | 2004-01-13 | 2004-07-14 | $7700.00 | Window Closed / Lapsed |