Patent US3897784A successfully refreshed from Google Patents.
US3897784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sanitary napkin
Assignee: Colgate Palmolive Co
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Filing: 1974-07-24
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Granted: 1975-08-05
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Expires: 1994-07-24
Abstract
Abstract A sanitary napkin having a fluid pervious outer cover and an inner absorbent core. The core is formed of a strip or sheet of fibrous material folded to form a three-ply pad, the lower ply being the central portion of the strip and being longer than the middle and upper plies so as to provide for a taper in the thickness of the pad. The pad is also tapered in its width. The middle ply is provided with embossed ribs for distributing fluid, while the upper ply is provided with holes therethrough for quickly delivering fluid to the middle ply and to prevent puddling. A film or sheet of liquid impervious material is disposed below the pad to prevent seepage, should the pad become overloaded.
Inventors
- 👤 Harry Fitzgerald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:17
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/53; A61F13/534; A61F13/535; A61F13/536; A61F13/45; A61F13/47; A61F13/471; A61F13/53409; A61F13/537; A61F2013/530131; A61F13/53708; A61F2013/53721; A61F2013/53765; A61F2013/53782
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
87 words
A body fluid absorbent pad adapted for contact with body areas comprising a central portion and first and second end portions said portions being longitudinally joined to each other by transverse folds to form a three-ply stacked absorbent means, said first end portion defining an upper body contacting ply having a plurality of discreet fluid contacting holes there through, said second end portion defining an intermediate ply having a plurality of fluid directing embossment ribs communicating with said holes, said central portion defining an absorbent bottom ply.
Claim 2
Dependent Claim
87 words
A body fluid absorbent pad adapted for contact with body areas comprising a central portion and first and second end portions said portions being longitudinally joined to each other by transverse folds to form a three-ply stacked absorbent means, said first end portion defining an upper body contacting ply having a plurality of discreet fluid contacting holes there through, said second end portion defining an intermediate ply having a plurality of fluid directing embossment ribs communicating with said holes, said central portion defining an absorbent bottom ply.
Claim 3
Dependent Claim
17 words
An absorbent pad according to claim 1 wherein said end portions are shorter than said central portion.
Claim 4
Dependent Claim
19 words
An absorbent pad according to claim 1 wherein said pad is vertically and horizontally tapered at the ends thereof.
Claim 5
Dependent Claim
24 words
An absorbent pad according to claim 1 further including a fluid impervious sheet around a substantial portion of said pad including said bottom ply.
Claim 6
Dependent Claim
10 words
The absorbent pad of claim 1 comprising a baby diaper.
Claim 7
Dependent Claim
10 words
The absorbent pad of claim 1 comprising a surgical dressing.
Claim 8
Dependent Claim
10 words
The absorbent pad of claim 1 comprising an incontinent pad.
Claim 9
Dependent Claim
10 words
The absorbent pad of claim 1 comprising a sanitary napkin.
Claim 10
Dependent Claim
14 words
An absorbent pad according to claim 1 wherein said embossment ribs are longitudinally disposed.
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) | 1978-08-04 | 1979-02-03 | 1979-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-04 | 1983-02-03 | 1983-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-04 | 1987-02-03 | 1987-08-05 | $7700.00 | Window Closed / Lapsed |