Patent US4675013A successfully refreshed from Google Patents.
US4675013A
Expired / Lapsed
US
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Napkin construction with laminate wrapper
Assignee: Johnson and Johnson
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Filing: 1984-09-25
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Granted: 1987-06-23
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Expires: 2004-09-25
Abstract
Abstract A sanitary napkin is provided which obviates the problem of stain propagating across the body facing side of the napkin while still facilitates manufacturing processes. Specifically, the napkin comprises a pad having a wrapper which overlies the garment facing side of the pad, the longitudinal sides of the pad, and peripheral portions of the body facing surface of the pad. The wrapper comprises a body fluid impervious sheet laminated to a fibrous sheet with the fibrous sheet being wider than the impervious sheet. The fibrous sheet has a width sufficient to overlie the garment facing surface, the longitudinal sides and the longitudinal peripheral portions of the body facing side of said pad, but is insufficient in width to overlie the central major portion of the body facing surface of the pad.
Inventors
- 👤 Angelo P. Ruffo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:30
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/45; A61F13/47; A61F13/475; A61F13/4751; A61F13/4755; A61F13/53; A61F13/534; A61F13/51; A61F2013/51097; A61F13/514; A61F13/51401; A61F2013/51409; A61F2013/53445
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
189 words
A sanitary napkin comprising: an elongated absorbent pad having a body facing surface and a garment facing surface with longitudinal sides therebetween; a wrapper overlying said garment facing surface, said longitudinal peripheral portions of said body facing side; said wrapper comprising a body fluid impervious sheet laminated to a fibrous sheet, said fibrous sheet being wider than said impervious sheet so that said fibrous sheet extends beyond the fluid impervious sheet; said impervious sheet having a width sufficient for said impervious sheet to overlie the garment facing surface and at least a portion of said longitudinal sides of said pad; said fibrous sheet having a width sufficient to overlie the garment facing surface, the longitudinal sides, and the longitudinal peripheral portions of the boby facing side of the pad and extend beyond the edges of the impervious sheet but insufficient to overlie the central, major portion of said body facing side of said pad; said wrapper being emplaced about said pad with the fibrous sheet portion in contact with the garment facing surface, the longitudinal sides, and the longitudinal peripheral portions of the body facing side of the pad.
Claim 2
Dependent Claim
189 words
A sanitary napkin comprising: an elongated absorbent pad having a body facing surface and a garment facing surface with longitudinal sides therebetween; a wrapper overlying said garment facing surface, said longitudinal peripheral portions of said body facing side; said wrapper comprising a body fluid impervious sheet laminated to a fibrous sheet, said fibrous sheet being wider than said impervious sheet so that said fibrous sheet extends beyond the fluid impervious sheet; said impervious sheet having a width sufficient for said impervious sheet to overlie the garment facing surface and at least a portion of said longitudinal sides of said pad; said fibrous sheet having a width sufficient to overlie the garment facing surface, the longitudinal sides, and the longitudinal peripheral portions of the boby facing side of the pad and extend beyond the edges of the impervious sheet but insufficient to overlie the central, major portion of said body facing side of said pad; said wrapper being emplaced about said pad with the fibrous sheet portion in contact with the garment facing surface, the longitudinal sides, and the longitudinal peripheral portions of the body facing side of the pad.
Claim 3
Dependent Claim
17 words
The sanitary napkin of claim 1 further provided with a cover enveloping said pad and said wrapper.
Claim 4
Dependent Claim
16 words
The sanitary napkin of claim 2 wherein said cover comprises hydrophobic material pervious to body fluids.
Claim 5
Dependent Claim
43 words
The sanitary napkin of claim 1 wherein said central major portion of said body facing side of said pad which is uncovered by said fibrous sheet comprises at least 30 percent of the total area at said body facing side of said pad.
Claim 6
Dependent Claim
41 words
The sanitary napkin of claim 4 wherein the central major portion of said body facing side of said pad uncovered by said fibrous sheet comprises at least 40 percent of the total area of said body facing side of said pad.
Claim 7
Dependent Claim
42 words
The sanitary napkin of claim 1 wherein the central major portion of said body facing side of said pad uncovered by said fibrous sheet comprises no more than 85 percent of the total area of said body facing side of said pad.
Claim 8
Dependent Claim
40 words
The napkin of claim 1 wherein the central major portion of said body facing side of said pad uncovered by said fibrous sheet comprises no more than 60 percent of the area of said body facing side of said pad.
Claim 9
Dependent Claim
12 words
The sanitary napkin of claim 1 wherein said fibrous sheet is tissue.
Claim 10
Dependent Claim
23 words
The sanitary napkin of claim 8 wherein said tissue has a basis weight of from about 10 to about 30 grams/meter 2 .
Claim 11
Dependent Claim
23 words
The sanitary napkin of claim 9 wherein the tissue has a basis weight of from about 13 to about 26 grams/meter 2 .
Claim 12
Dependent Claim
15 words
The sanitary napkin of claim 1 wherein said impervious sheet is a film of polyethylene.
Claim 13
Dependent Claim
18 words
The sanitary napkin of claim 11 wherein said polyethylene has a thickness of 0.1 to about 3.0 mils.
Claim 14
Dependent Claim
20 words
The sanitary napkin of claim 12 wherein said polyethylene film has a thickness of about 0.2 to about 1.0 mils.
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) | 1990-06-22 | 1990-12-22 | 1991-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-22 | 1994-12-22 | 1995-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-22 | 1998-12-22 | 1999-06-23 | $7700.00 | Window Closed / Lapsed |