US5009653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thin, flexible sanitary napkin
Assignee: Procter and Gamble Co
•
Filing: 1990-08-20
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Granted: 1991-04-23
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Expires: 2010-08-20
Abstract
Abstract In accordance with the present invention, a sanitary napkin having a body surface and a garment surface and being comprised of an absorbent means underlayed by a liquid barrier means, wherein the sanitary napkin is relatively highly flexible and has a capacity great enough to handle medium to high menstrual flows, is provided. In a preferred embodiment, the sanitary napkin comprises, from the body surface down, an apertured formed film topsheet, an apertured nonwoven wipe acquisition sheet, a wet-laid tissue, a superabsorbent core, and a barrier sheet. Preferably, the central width of the absorbents is at least about 6.5 centimeters and the caliper of the napkin as a whole is less than about 2.6 millimeters. In a preferred embodiment, the napkin has laterally extending flaps which drape over the edges of the wearer's panties in the crotch and are attachable to the garment side of the wearer's panties.
Inventors
- 👤 Thomas W. Osborn, III
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:00
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/45; A61F13/47; A61F13/472; A61F13/47218; A61F13/47227; A61F13/15203; A61F13/47263; A61F13/53; A61F13/534; A61F13/537; A61F13/53708; A61F13/53717; A61F13/53704; A61F2013/15284; A61F2013/15365; A61F2013/15373; A61F2013/15382; A61F2013/4708; A61F13/51; A61F2013/51059; A61F2013/51066; A61F13/514; A61F13/51401; A61F2013/51409; A61F2013/51411; A61F13/51474; A61F2013/51486; A61F2013/5149; A61F2013/530481; A61F2013/530489; A61F2013/53051; A61F2013/530583; A61F2013/530613; A61F2013/53062; A61F2013/5307; A61F2013/53721; A61F2013/53726; A61F2013/53765; A61F2013/53782; A61F13/56; A61F13/58; A61F2013/586; A61F13/84; A61F2013/8488; A61F2013/8491
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
58 words
A sanitary napkin comprising: a liquid permeable topsheet; a liquid impermeable barrier sheet; an absorbent core intermediate said topsheet and said barrier sheet; said sanitary napkin having a test capacity of at least about 8.0 grams, a total capacity of at least about 14.0 grams, and an absorbent portion with a flexure resistance less than about 300 grams.
Claim 2
Dependent Claim
58 words
A sanitary napkin comprising: a liquid permeable topsheet; a liquid impermeable barrier sheet; an absorbent core intermediate said topsheet and said barrier sheet; said sanitary napkin having a test capacity of at least about 8.0 grams, a total capacity of at least about 14.0 grams, and an absorbent portion with a flexure resistance less than about 300 grams.
Claim 3
Dependent Claim
19 words
A sanitary napkin as claimed in claim 1 wherein said absorbent portion is a square specimen measuring 37.5×37.5 millimeters.
Claim 4
Dependent Claim
18 words
A sanitary napkin as claimed in claim 2, wherein said flexure resistance is less than about 250 grams.
Claim 5
Dependent Claim
21 words
A sanitary napkin as claimed in claim 2, wherein said sanitary napkin has a total capacity greater than about 20.0 grams.
Claim 6
Dependent Claim
20 words
A sanitary napkin as claimed in claim 2, wherein said sanitary napkin has a caliper less than about 5.0 millimeters.
Claim 7
Dependent Claim
20 words
A sanitary napkin as claimed in claim 5, wherein said sanitary napkin has a caliper less than about 3.0 millimeters.
Claim 8
Dependent Claim
66 words
A sanitary napkin comprising: a liquid permeable topsheet; a liquid impermeable barrier sheet; an absorbent core intermediate said topsheet and said barrier sheet; said sanitary napkin having a test capacity of at least about 8.0 grams, a total capacity of at least about 14.0 grams, a caliper of less than about 5.0 millimeters and an absorbent portion with a flexure resistance less than about 400 grams.
Claim 9
Dependent Claim
66 words
A sanitary napkin comprising: a liquid permeable topsheet; a liquid impermeable barrier sheet; an absorbent core intermediate said topsheet and said barrier sheet; said sanitary napkin having a test capacity of at least about 8.0 grams, a total capacity of at least about 14.0 grams, a caliper of less than about 5.0 millimeters and an absorbent portion with a flexure resistance less than about 400 grams.
Claim 10
Dependent Claim
31 words
A sanitary napkin as claimed in claim 7 wherein said absorbent portion having a flexure resistance less than about 400 grams is the most flexible absorbent portion of said sanitary napkin.
Claim 11
Dependent Claim
19 words
A sanitary napkin as claimed in claim 8 wherein said absorbent portion is a square specimen measuring 37.5×37.5 millimeters.
Claim 12
Dependent Claim
21 words
A sanitary napkin as claimed in claim 7 wherein said sanitary napkin has a total capacity greater than about 20 grams.
Claim 13
Dependent Claim
20 words
A sanitary napkin as claimed in claim 7 wherein said sanitary napkin has a caliper less than about 3.0 millimeters.
Claim 14
Dependent Claim
21 words
A sanitary napkin as claimed in claim 7 wherein said sanitary napkin has a flexure resistance less than about 250 grams.
References Cited (Backward Citations)
US3397697A
Cited
US3455303A
Cited
US3570491A
Cited
US3881490A
Cited
US4057061A
Cited
US4846829A
Cited
US4467012A
Cited
US4500315A
Cited
US4537590A
Cited
US4540454A
Cited
US4573988A
Cited
US4610678A
Cited
US4654038A
Cited
US4560372A
Cited
US4605402A
Cited
US4596567A
Cited
US4559050A
Cited
US4681578A
Cited
EP0215417A1
Cited
US4654040A
Cited
US4701178A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-04-22 | 1994-10-22 | 1995-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-22 | 1998-10-22 | 1999-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-22 | 2002-10-22 | 2003-04-23 | $7700.00 | Window Closed / Lapsed |