US4911701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sanitary napkin having elastic shaping means
Assignee: Personal Products Co
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Filing: 1988-02-26
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Granted: 1990-03-27
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Expires: 2008-02-26
Abstract
Abstract Sanitary Napkins are disclosed having elastic means for providing a greater convex shape to the body-facing portion of the central absorbent and for enabling adhesive-free placement of the flaps of a winged napkin embodiment. The elastic means comprise one or more elastic strips disposed in tension across the transverse width of the napkin to exert compressive forces on the central absorbent element and cause the flaps to fold naturally inward on the undergarment facing side. Also disclosed is a winged napkin having longitudinally disposed elastic means in one or both wings to impart a concave shape to the undergarment facing side of the wings.
Inventors
- 👤 Pramod Mavinkurve
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:48
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/45; A61F13/47; A61F13/476; A61F13/56; A61F13/5605; A61F13/5616; A61F13/58; A61F13/49; A61F13/49007; A61F13/49009; A61F13/4902; A61F2013/49033
Claims Analysis
Total Claims: 22
Claim 1
Independent 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 2
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 3
Dependent Claim
32 words
The sanitary napkin of claim 1 wherein said elastic means is affixed to said absorbent element of said napkin at two opposing points on said longitudinally extending sides of said absorbent element.
Claim 4
Dependent Claim
22 words
The sanitary napkin of claim 1 wherein said elastic means is disposed adjacent said fluid impervious backing layer of said absorbent element.
Claim 5
Dependent Claim
23 words
The sanitary napkin of claim 1 wherein said elastic means is extended in tension from about 10% to 200% of its original length.
Claim 6
Dependent Claim
64 words
A sanitary napkin comprising: (a) an absorbent element having longitudinally extending sides, transverse ends, a body facing side and an undergarment facing side, (b) flaps extending laterally from each of said longitudinal sides of said absorbent element; and (c) elastic means disposed within at least one of said flaps for configuring said one of said flaps to fold over on the undergarment facing side.
Claim 7
Dependent Claim
64 words
A sanitary napkin comprising: (a) an absorbent element having longitudinally extending sides, transverse ends, a body facing side and an undergarment facing side, (b) flaps extending laterally from each of said longitudinal sides of said absorbent element; and (c) elastic means disposed within at least one of said flaps for configuring said one of said flaps to fold over on the undergarment facing side.
Claim 8
Dependent Claim
18 words
The sanitary napkin of claim 5 wherein said elastic means comprises an elastic strip disposed within both flaps.
Claim 9
Dependent Claim
52 words
The sanitary napkin of claim 5 wherein said elastic means comprises an elastic strip disposed laterally from said absorbent element and affixed at one end at the juncture between said absorbent element and said one of said flaps, and at the other end on the periphery of said one of said flaps.
Claim 10
Dependent Claim
31 words
The sanitary napkin of claim 6 wherein said elastic means extends transversely across said absorbent element and is affixed at a point lying on the periphery of each of said flaps.
Claim 11
Dependent Claim
30 words
The sanitary napkin of claim 8 wherein said elastic means is also affixed at two points lying about on a line of juncture between said absorbent element and said flaps.
Claim 12
Dependent Claim
27 words
The sanitary napkin of claim 9 wherein the portion of said elastic means extending across said absorbent element is disposed in tension to compress said absorbent element.
Claim 13
Dependent Claim
81 words
A sanitary napkin comprising: (a) an absorbent element having longitudinally extending sides, transverse ends, a body facing side and an undergarment facing side; (b) flaps extending laterally from each of said longitudinally sides of said absorbent element; (c) elastic means disposed within at least one of said flaps for configuring said one of said flaps to fold over on the undergarment facing side; and (d) wherein said elastic means comprises two elastic strips disposed transversely across a portion of said napkin.
Claim 14
Dependent Claim
81 words
A sanitary napkin comprising: (a) an absorbent element having longitudinally extending sides, transverse ends, a body facing side and an undergarment facing side; (b) flaps extending laterally from each of said longitudinally sides of said absorbent element; (c) elastic means disposed within at least one of said flaps for configuring said one of said flaps to fold over on the undergarment facing side; and (d) wherein said elastic means comprises two elastic strips disposed transversely across a portion of said napkin.
Claim 15
Dependent Claim
19 words
The sanitary napkin of claim 11 wherein said elastic strips are affixed in tension to compress said absorbent element.
Claim 16
Dependent Claim
31 words
The sanitary napkin of claim 12 wherein said elastic strips are disposed on said flaps and affixed in tension for configuring said flaps over the undergarment facing side of said napkin.
Claim 17
Dependent Claim
83 words
A sanitary napkin having a body facing side and an undergarment facing side comprising: (a) an absorbent element having longitudinally extending sides and transverse ends; (b) flaps extending laterally from each of said longitudinal sides of said absorbent element; and (c) an elastic strip disposed longitudinally within at least one of said flaps for providing a more concave shape to the undergarment-facing side of said one of said flaps and a convex shape to the body-facing side of said one of said flaps.
Claim 18
Dependent Claim
83 words
A sanitary napkin having a body facing side and an undergarment facing side comprising: (a) an absorbent element having longitudinally extending sides and transverse ends; (b) flaps extending laterally from each of said longitudinal sides of said absorbent element; and (c) an elastic strip disposed longitudinally within at least one of said flaps for providing a more concave shape to the undergarment-facing side of said one of said flaps and a convex shape to the body-facing side of said one of said flaps.
Claim 19
Dependent Claim
15 words
The sanitary napkin of claim 14 wherein said elastic means is disposed within both flaps.
Claim 20
Dependent Claim
24 words
The sanitary napkin of claim 15 wherein said elastic means comprises elastic strips disposed parallel to the longitudinally extending sides of said absorbent element.
Claim 21
Dependent Claim
81 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) elastic means disposed in tension transversely across said absorbent element and affixed to said napkin at at least two points to impart a convex shape to said body-facing side; and (c) flaps extending laterally from each of said longitudinally extending sides of said absorbent element.
Claim 22
Dependent Claim
81 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) elastic means disposed in tension transversely across said absorbent element and affixed to said napkin at at least two points to impart a convex shape to said body-facing side; and (c) flaps extending laterally from each of said longitudinally extending sides of said absorbent element.
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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) | 1993-03-26 | 1993-09-25 | 1994-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-26 | 1997-09-25 | 1998-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-26 | 2001-09-25 | 2002-03-27 | $7700.00 | Window Closed / Lapsed |