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US3779246A Expired / Lapsed US ⏱️ 0.0 years remaining

Disposable diaper

Assignee: Johnson and Johnson
•
Filing: 1971-10-07
•
Granted: 1973-12-18
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Expires: 1991-10-07
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Abstract

Abstract A disposable multi-layer diaper of high absorptive capacity is provided which comprises as a first layer, to be brought into contact with an infant''s skin, a porous, fibrous, non-woven bonded facing web of controlled wettability made of mixed long and short fibers. A second layer, in juxtaposition to the facing layer, is a highly porous, loosely compacted cellulosic batt having greater wettability than that of the facing web. Beyond the cellulosic batt is an impervious backing sheet adhered to the batt over a widely distributed area of adhesion. The final or outermost layer is a fibrous material which is adhered to the backing sheet, and which enables the diaper to have the feel and handle of a cloth diaper. The outermost layer, preferably, is a non-woven web made of mixed long and short fibers that are bonded together with a water-repellent bonding agent.

Inventors

  • 👤 F Mesek
  • 👤 V Repke

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 22:39
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/51; A61F13/514; A61F13/51474; A61F13/51478; A61F13/5148; A61F13/15203; A61F2013/15284; A61F2013/15422; A61F2013/1543

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 11 words
The diaper of claim 1 wherein said outer layer is hydrophobic.
Claim 2
Dependent Claim 17 words
The diaper of claim 2 wherein said outer layer is through bonded with an acrylic latex binder.
Claim 3
Dependent Claim 20 words
The diaper of claim 2 wherein said outer layer has a weight between about 1/2 oz./yd.2 and about 2 oz./yd.2
Claim 4
Dependent Claim 15 words
The diaper of claim 2 wherein said outer layer is adhesively secured to said sheet.
Claim 5
Dependent Claim 24 words
The diaper of claim 2 wherein said sheet is formed of a thermoplastic material and said outer layer is heat sealed to said sheet.

References Cited (Backward Citations)

US2649859A Cited
US3017304A Cited
US3067747A Cited
US3523536A Cited
US3663348A Cited
US3563241A Cited
US3658062A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-12-17 1977-06-18 1977-12-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-12-17 1981-06-18 1981-12-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-12-17 1985-06-18 1985-12-18 $7700.00 Window Closed / Lapsed

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