Patent US4773905A successfully refreshed from Google Patents.
US4773905A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Winged napkin having cross-channeling
Assignee: Personal Products Co
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Filing: 1987-08-27
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Granted: 1988-09-27
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Expires: 2007-08-27
Abstract
Abstract A sanitary napkin having flaps extending laterally from each of the longitudinal edges of its central absorbent element is provided with at least one fluid retarding channel disposed transversely across the absorbent element for inhibiting the transmission of body fluid from a central portion of the absorbent element to at least one transverse end. The preferred construction employs the use of two spaced apart compressed portions of the absorbent element to define a central absorbent portion and delay the transmission of body fluid from the central portion into the transverse end portions of the absorbent element, thereby minimizing the incidence of leakage from the ends of the napkin.
Inventors
- 👤 Kenneth J. Molee
- 👤 Kenneth B. Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:40
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/53; A61F13/531; A61F13/532; A61F13/533; A61F13/45; A61F13/47; A61F13/4704; A61F13/475; A61F13/4758; A61F13/56; A61F13/5605; A61F13/5616; A61F13/51; A61F2013/51078
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
66 words
A sanitary napkin comprising: (a) an absorbent element having longitudinally extending sides and transverse ends; (b) flaps extending laterally from each of said longitudinally extending sides of said absorbent element; and (c) a fluid retarding means disposed transversely across said element for inhibiting the transmission of body fluid from a central portion of said absorbent element to one of said transverse ends of said absorbent element.
Claim 2
Dependent Claim
66 words
A sanitary napkin comprising: (a) an absorbent element having longitudinally extending sides and transverse ends; (b) flaps extending laterally from each of said longitudinally extending sides of said absorbent element; and (c) a fluid retarding means disposed transversely across said element for inhibiting the transmission of body fluid from a central portion of said absorbent element to one of said transverse ends of said absorbent element.
Claim 3
Dependent Claim
47 words
The sanitary napkin of claim 1 wherein said fluid retarding means comprises at least two compressed portions of said absorbent element, which defining a central portion and inhibiting the transmission of body fluid from said central portion of said absorbent element to each of said transverse ends.
Claim 4
Dependent Claim
12 words
The sanitary napkin of claim 2 wherein said flaps comprise absorbent material.
Claim 5
Dependent Claim
29 words
The sanitary napkin of claim 2 wherein said compressed portions are disposed along curvilinear paths, said paths having ends disposed on the longitudinally extending sides of said absorbent element.
Claim 6
Dependent Claim
34 words
The sanitary napkin of claim 3 further comprising body fluid sealing means disposed between said absorbent element and said flaps for preventing the transmission of body fluid from said absorbent element into said flaps.
Claim 7
Dependent Claim
25 words
The sanitary napkin of claim 5 wherein said body fluid sealing means is disposed along the entire boundary between said absorbent element and said flaps.
Claim 8
Dependent Claim
20 words
The sanitary napkin of claim 3 further comprising fluid tight seal means around the entire periphery of said sanitary napkin.
Claim 9
Dependent Claim
29 words
The sanitary napkin of claim 3 wherein said compressed portions have end points which lie on a pair of junction lines located between said absorbent element and said flaps.
Claim 10
Dependent Claim
26 words
The sanitary napkin of claim 8 wherein said flaps comprise a width that is greater than the length of said central portion of the absorbent element.
Claim 11
Dependent Claim
27 words
The sanitarY napkin of claim 2 wherein said napkin is folded along the compressed portions of the absorbent element to provide a better fit for said napkin.
Claim 12
Dependent Claim
28 words
The napkin of claim 10 wherein said absorbent element is folded along said compressed portions to provide a concave configuration for a body side surface of said napkin.
Claim 13
Dependent Claim
92 words
A sanitary napkin comprising: (a) an absorbent element having longitudinally extending sides and transverse ends, and comprising an absorbent core, a liquid impermeable cover on one side of said absorbent core and a liquid impermeable barrier on the other side of said absorbent core; (b) flaps comprising said cover and said barrier extending laterally from each of said absorbent element, and (c) fluid retarding means disposed transversely across said absorbent element for inhibiting the transmission of body fluids from a central portion of said absorbent element to one of said transverse ends.
Claim 14
Dependent Claim
92 words
A sanitary napkin comprising: (a) an absorbent element having longitudinally extending sides and transverse ends, and comprising an absorbent core, a liquid impermeable cover on one side of said absorbent core and a liquid impermeable barrier on the other side of said absorbent core; (b) flaps comprising said cover and said barrier extending laterally from each of said absorbent element, and (c) fluid retarding means disposed transversely across said absorbent element for inhibiting the transmission of body fluids from a central portion of said absorbent element to one of said transverse ends.
Claim 15
Dependent Claim
23 words
The sanitary napkin of claim 12 wherein said fluid retarding means comprises a compressed portion of said absorbent element defining a channel therein.
Claim 16
Dependent Claim
30 words
The sanitary napkin of claim 13 wherein said fluid retarding means comprises a pair of spaced apart channels defining a central portion and two end portions of said absorbent element.
Claim 17
Dependent Claim
30 words
The sanitary napkin of claim 12 comprising a further absorbent material disposed between said absorbent core and said barrier and extending into said flaps between said cover and said barrier.
Claim 18
Dependent Claim
33 words
The sanitary nakin of claim 15 comprising body fluid sealing means disposed between said absorbent element and said flaps for preventing the transmission of body fluids from said absorbent element into said flaps.
Claim 19
Dependent Claim
24 words
The sanitary napkin of claim 13 wherein said fluid retarding means comprises a portion of said absorbent core treated with a fluid repellent composition.
Claim 20
Dependent Claim
43 words
The sanitary napkin of claim 13 wherein said fluid retarding means are disposed on either side of the central portion of said absorbent element and extend between said flaps to define a central absorbent portion and two end portions of said absorbent element.
Claim 21
Dependent Claim
26 words
The sanitary napkin of claim 18 wherein said fluid retarding means are disposed along curvilinear paths to define a central absorbent portion having convex transverse ends.
Claim 22
Dependent Claim
22 words
The sanitary napkin of claim 19 wherein said absorbent element is hour-glass shaped and said central absorbent portion has concave longitudinal sides.
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) | 1991-09-27 | 1992-03-28 | 1992-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-27 | 1996-03-28 | 1996-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-27 | 2000-03-28 | 2000-09-27 | $7700.00 | Window Closed / Lapsed |