Patent US3995018B2 successfully refreshed from Google Patents.
Patent US6120437A successfully refreshed from Google Patents.
US4589876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sanitary napkin
Assignee: Procter and Gamble Co
•
Filing: 1984-03-20
•
Granted: 1986-05-20
•
Expires: 2004-03-20
Abstract
Abstract A sanitary napkin. The sanitary napkin comprises a central absorbent pad and flaps extending from each longitudinal edge of the central absorbent pad. The body of each flap contains a flexible axis about which the flap can fold on itself. The sanitary napkin preferentially bends at the line of juncture between each flap and the longitudinal edge of the central absorbent pad. When the sanitary napkin is in a panty for use, each flap bends upwardly at the lines of juncture between the flaps and the longitudinal edges of the central absorbent pad to form the base of a wall. This wall extends to the flexible axis in the body of the flap which is folded around the edge of the crotch portion of the panty. The sanitary napkin of the present invention provides effective protection to the user during the menstrual period by preventing body and clothing soiling while being comfortable to wear.
Inventors
- 👤 Kees J. Van Tilburg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:42
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/45; A61F13/47; A61F13/475; A61F13/4751; A61F13/4752; A61F13/51; A61F13/511; A61F13/56; A61F13/5605; A61F13/5616; A61F13/53; A61F13/534; A61F13/537; A61F13/58; A61F13/49; A61F2013/49068; A61F2013/49076; A61F13/514; A61F13/51401; A61F2013/51409; A61F2013/530131; A61F13/53708; A61F2013/53721; A61F2013/583
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
164 words
A sanitary napkin that is sized and configured to be worn in a user's panties which panties are so sized and configured that the crotch edge portions can be positioned in the user's groins while the crotch region of the panties noncompressively cover the user's labia majoria, said sanitary napkin comprising a longitudinally elongate absorbent core, a liquid barrier backsheet, and a pair of flexible side flaps, said core being sized and configured to only span across the distal surfaces of the user's labia majoria, and said flaps being sufficiently flexible and sized and configured to be so disposed in a user's panties that proximal portions of said flaps extend upwardly to the user's groins and cover the laterally outwardly facing surface areas of the user's labia majoria, and so that distal portions of said flaps extend downwardly from said user's groins and are disposed intermediate edge portions of said crotch region of the user's panties and areas of the user's inner thigh regions.
Claim 2
Dependent Claim
164 words
A sanitary napkin that is sized and configured to be worn in a user's panties which panties are so sized and configured that the crotch edge portions can be positioned in the user's groins while the crotch region of the panties noncompressively cover the user's labia majoria, said sanitary napkin comprising a longitudinally elongate absorbent core, a liquid barrier backsheet, and a pair of flexible side flaps, said core being sized and configured to only span across the distal surfaces of the user's labia majoria, and said flaps being sufficiently flexible and sized and configured to be so disposed in a user's panties that proximal portions of said flaps extend upwardly to the user's groins and cover the laterally outwardly facing surface areas of the user's labia majoria, and so that distal portions of said flaps extend downwardly from said user's groins and are disposed intermediate edge portions of said crotch region of the user's panties and areas of the user's inner thigh regions.
Claim 3
Dependent Claim
14 words
The sanitary napkin of claim 1 wherein said medial width is about 5 centimeters.
Claim 4
Dependent Claim
40 words
The sanitary napkin of claim 1 wherein the medial width of said core is from about thirty percent to about one-hundred percent of the medial width of the crotch region of a properly sized pair of panties for said user.
Claim 5
Dependent Claim
39 words
The sanitary napkin of claim 1 wherein the medial width of said core is from about thirty to about seventy percent of the medial width of the crotch region of a properly sized pair of panties for said user.
Claim 6
Dependent Claim
34 words
The sanitary napkin of claim 1 wherein the medial width of said core is about seventy percent of the width of the crotch region of a properly sized pair of panties for said user.
Claim 7
Dependent Claim
25 words
The sanitary napkin of claim 1, 2, 3, 4, or 5 further comprising means for being releasably adhered to the crotch of the user's panties.
Claim 8
Dependent Claim
57 words
The sanitary napkin of claim 6 wherein said means for being releasably adhered to the user's panties comprises an area of adhesive on the outwardly facing surface of said sanitary napkin which area is subjacent said absorbent core whereby said sanitary napkin can be releasably adhered to the inside surface of the crotch of the user's panties.
Claim 9
Dependent Claim
65 words
The sanitary napkin of claim 6 wherein said means for being releasably adhered to the user's panties comprises a region of adhesive on the outwardly facing surface of the distal portion of each of said flaps whereby said sanitary napkin can be releasably adhered to the outer surfaces of crotch of the user's panties which regions are disposed adjacent the leg openings of the panties.
Claim 10
Dependent Claim
57 words
The sanitary napkin of claim 8 wherein said means for being releasably adhered to the user's panties further comprises an area of adhesive on the outwardly facing surface of said sanitary napkin which area is subjacent said absorbent core whereby said area can be releasably adhered to the inside surface of the crotch of the user's panties.
Claim 11
Dependent Claim
21 words
The sanitary napkin of claim 1 wherein said core has a medial width of from about 2 to about 7 centimeters.
Claim 12
Dependent Claim
17 words
The sanitary napkin of claim 10 wherein said width is from about 2 to about 5 centimeters.
Claim 13
Dependent Claim
109 words
A laterally articulated sanitary napkin comprising an elongate central absorbent core having side edges, two proximal side panels having proximal and distal edges, and two distal side panels, said proximal side panels extending laterally outward from central portions of said side edges of said central absorbent core, and having said proximal edges coextensive therewith, and said distal side panels extending laterally outward from said distal edges of said proximal side panels, said sanitary napkin further comprising means for articulating said distal side panels relative to said proximal side panels, and means for being folded along the coextensive edge portions of said central absorbent core and said proximal side panels.
Claim 14
Dependent Claim
109 words
A laterally articulated sanitary napkin comprising an elongate central absorbent core having side edges, two proximal side panels having proximal and distal edges, and two distal side panels, said proximal side panels extending laterally outward from central portions of said side edges of said central absorbent core, and having said proximal edges coextensive therewith, and said distal side panels extending laterally outward from said distal edges of said proximal side panels, said sanitary napkin further comprising means for articulating said distal side panels relative to said proximal side panels, and means for being folded along the coextensive edge portions of said central absorbent core and said proximal side panels.
Claim 15
Dependent Claim
20 words
The sanitary napkin of claim 12 wherein said central absorbent core and said proximal side panels are a unitary structure.
Claim 16
Dependent Claim
30 words
The sanitary napkin of claim 12 or 13 wherein said proximal side panels have end edges which intersect said side edges of said central absorbent core at an oblique angle.
Claim 17
Dependent Claim
84 words
The sanitary napkin of claim 12 or 13 wherein said central absorbent core is sized and configured to cover the distal portions of a user's labia majoria, said proximal side panels are sized and configured to cover laterally outwardly facing areas of the user's labia majoria and to be positioned so that said distal edges are disposed along the user's groins, and said distal side panels are configured to extend downwardly from the user's groins and be disposed adjacent the user's inner thigh areas.
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) | 1989-05-19 | 1989-11-18 | 1990-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-19 | 1993-11-18 | 1994-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-19 | 1997-11-18 | 1998-05-20 | $7700.00 | Window Closed / Lapsed |