US4216773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable diaper with center folded edges
Assignee: Paragon Trade Brands LLC
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Filing: 1979-03-30
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Granted: 1980-08-12
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Expires: 1999-03-30
Abstract
Abstract A disposable diaper that is better fitting and has the absorbent material more advantageously located is made by cutting two longitudinal slits in the front end of a generally rectangular absorbent pad. Flaps are generated by a fold line originating on the edges of the pad, at or near the rear corners, and projected to intersect the adjacent slits at or near their inner ends. The flaps are folded inwardly to create a generally Y-shaped diaper having multiple layers of absorbent material in the area of heaviest wetting.
Inventors
- 👤 A. Sensor Ryan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:34
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/53; A61F13/534; A61F13/53409
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
147 words
A diaper pad having increased absorbent material in the area of maximum wetting, the pad constructed from a generally rectangular piece of absorbent material, wherein the improvement comprises; a pair of longitudinal slits generally parallel to each other and to the sides of the pad, the slits extending from the front end toward the back end of the pad; a pair of flaps defined by fold lines symmetrical about a longitudinal axis, the fold lines originating on opposite sides of the pad at or near the corners of the back end of the pad and extending generally to the inner ends of the adjacent slits; the flaps being folded over the surface of the pad to lie in substantially the same plane, thereby defining a generally Y-shaped diaper having a central portion with at least three layers of absorbent material over part of the maximum wetting area.
Claim 2
Dependent Claim
147 words
A diaper pad having increased absorbent material in the area of maximum wetting, the pad constructed from a generally rectangular piece of absorbent material, wherein the improvement comprises; a pair of longitudinal slits generally parallel to each other and to the sides of the pad, the slits extending from the front end toward the back end of the pad; a pair of flaps defined by fold lines symmetrical about a longitudinal axis, the fold lines originating on opposite sides of the pad at or near the corners of the back end of the pad and extending generally to the inner ends of the adjacent slits; the flaps being folded over the surface of the pad to lie in substantially the same plane, thereby defining a generally Y-shaped diaper having a central portion with at least three layers of absorbent material over part of the maximum wetting area.
Claim 3
Dependent Claim
42 words
The diaper of claim 1 wherein the slits extend from 20% to 50% of the total length of the diaper and each slit originates inward from the edge from 10% to 20% of the distance from the edge to the longitudinal centerline.
Claim 4
Dependent Claim
70 words
The diaper of claim 2 in which the slits are of unequal length and the fold lines are generated by projecting a first fold line from at or near a first rear corner generally through the end of the shorter slit and then generating an opposite fold line symmetrical about a longitudinal axis, the opposite fold line intersecting its corresponding longer slit substantially above the inner end of the slit.
Claim 5
Dependent Claim
39 words
The diaper of claim 3 in which the flap defined by the first fold line is folded over first, this flap being tucked through the longer slit before the flap defined by the second fold line is folded over.
Claim 6
Dependent Claim
36 words
The diaper of claim 2 wherein any portion of a folded flap that extends beyond the line defining the opposite slit is folded back upon itself to add additional pad thickness in the critical central portion.
Claim 7
Dependent Claim
16 words
The diaper of claim 1 wherein the flaps are bonded in place by spots of adhesive.
References Cited (Backward Citations)
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US2122417A
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US2788003A
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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) | 1983-08-12 | 1984-02-11 | 1984-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-08-12 | 1988-02-11 | 1988-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-08-12 | 1992-02-11 | 1992-08-12 | $7700.00 | Window Closed / Lapsed |