US5176669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tapeless super-absorbent disposable diaper
Assignee: Associated Hygienic Products LLC
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Filing: 1991-01-18
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Granted: 1993-01-05
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Expires: 2011-01-18
Abstract
Abstract A disposable diaper which has a fluid permeable topsheet, a fluid permeable second sheet, a flexible absorbent body, a biodegradable, liquid impermeable barrier including side dams, and a soft, flexible backsheet. The topsheet can include leg cuffs that are an integral, rather than an adjunct, part of the topsheet. The diaper also has an attachment means for allowing the diaper to be secured about the wearer.
Inventors
- 👤 Walter V. Klemp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:14
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/53; A61F13/534; A61F13/53409; A61F13/53418; A61F13/15203; A61F13/15252; A61F13/535; A61F13/56; A61F13/58; A61F13/45; A61F13/49; A61F13/494; A61F13/49406; A61F13/49413; A61F13/537; A61F2013/49068; A61F2013/49076; A61F2013/530007; A61F2013/530131; A61F2013/530182; A61F2013/530481; A61F2013/53051; A61F2013/5307; A61F2013/583; A61F2013/588
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
147 words
A disposable diaper, comprising: a fluid permeable topsheet, a backsheet and an absorbent body interposed between said topsheet and said backsheet; said topsheet includes longitudinal edges and a center wherein said topsheet is folded back over itself along each said longitudinal edge intermediate said center and each said longitudinal edge and bonded at least once thereto thereby forming both casings and flaps which act as fluid dams; an elastic band positioned in each said casing; said backsheet has first and second side and first and second ends; and an attachment means for allowing said diaper to be secured about its wearer comprising at least one strip of a selectively adhesive material applied to said first side adjacent to said first end of said backsheet and at least one other strip of selectively adhesive material applied to said second side adjacent to said second end of said backsheet.
Claim 2
Dependent Claim
147 words
A disposable diaper, comprising: a fluid permeable topsheet, a backsheet and an absorbent body interposed between said topsheet and said backsheet; said topsheet includes longitudinal edges and a center wherein said topsheet is folded back over itself along each said longitudinal edge intermediate said center and each said longitudinal edge and bonded at least once thereto thereby forming both casings and flaps which act as fluid dams; an elastic band positioned in each said casing; said backsheet has first and second side and first and second ends; and an attachment means for allowing said diaper to be secured about its wearer comprising at least one strip of a selectively adhesive material applied to said first side adjacent to said first end of said backsheet and at least one other strip of selectively adhesive material applied to said second side adjacent to said second end of said backsheet.
Claim 3
Dependent Claim
41 words
The diaper of claim 1, wherein said selectively adhesive material is selected from water-based latex adhesives, hot melt application paraffin- or rubber-based adhesives or any other adhesive having its adhesive characteristic limited to contact with the same or another selected adhesive.
Claim 4
Dependent Claim
20 words
The diaper of claim 1, wherein said selectively adhesive material is a rubber-based adhesive utilizing a styrene butadiene styrene system.
Claim 5
Dependent Claim
143 words
A disposable diaper, comprising: a fluid permeable topsheet, a backsheet and an absorbent body interposed between said topsheet and said backsheet; said topsheet includes longitudinal edges and a center wherein said topsheet is folded back over itself along each said longitudinal edge and bonded at least once thereto thereby forming casings and flaps which act as fluid dams; an elastic band positioned in each said casing; said backsheet has first and second sides and first and second ends; and an attachment means for allowing said diaper to be secured about its wearer comprising at least one strip of a hook and loop fastening system applied to said first side adjacent to said first end of said backsheet and at least one other strip of said hook and loop fastening system applied to said second side adjacent to said second end of said backsheet.
Claim 6
Dependent Claim
143 words
A disposable diaper, comprising: a fluid permeable topsheet, a backsheet and an absorbent body interposed between said topsheet and said backsheet; said topsheet includes longitudinal edges and a center wherein said topsheet is folded back over itself along each said longitudinal edge and bonded at least once thereto thereby forming casings and flaps which act as fluid dams; an elastic band positioned in each said casing; said backsheet has first and second sides and first and second ends; and an attachment means for allowing said diaper to be secured about its wearer comprising at least one strip of a hook and loop fastening system applied to said first side adjacent to said first end of said backsheet and at least one other strip of said hook and loop fastening system applied to said second side adjacent to said second end of said backsheet.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-01-05 | 1996-07-06 | 1997-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-01-05 | 2000-07-06 | 2001-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-01-05 | 2004-07-06 | 2005-01-05 | $7700.00 | Window Closed / Lapsed |