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US3874385A Expired / Lapsed US ⏱️ 0.0 years remaining

Laminated diaper topsheet to provide disposability of solid wastes

Assignee: Procter and Gamble Co
•
Filing: 1973-09-17
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Granted: 1975-04-01
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Expires: 1993-09-17
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Abstract

Abstract A disposable diaper is provided with a laminated topsheet for covering of the absorbent pad and contacting the infant. By delamination and removal of the outer portion of the topsheet, it and the solid waste thereon may be disposed of separately from the remainder of the diaper, particularly the bulky portion which absorbs the water-like liquid wastes.

Inventors

  • 👤 Dale Albert Gellert

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 10:24
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/15203; A61F13/15211; A61F13/51; A61F13/511; A61F13/5116; A61F13/53; A61F13/534; A61F13/53409

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 113 words
In a disposable diaper of the type comprising a waterimpervious backsheet, an absorbent core superimposed on said backsheet, a generally hydrophobic topsheet overlying and enclosing said absorbent core, and a pair of tape fasteners for securing said diaper in an operative position about the wearer''s waist, the improvement wherein said topsheet comprises two layers and wherein the inter-layer bonding between said topsheet layers is less strong than the intra-layer bonding between said topsheet and the remainder of said diaper, said diaper including a topsheet delamination initiation means comprising a release liner for at least one of said tape fasteners whereby said topsheet can be delaminated to allow separate disposal of the layers thereof.
Claim 2
Dependent Claim 113 words
In a disposable diaper of the type comprising a waterimpervious backsheet, an absorbent core superimposed on said backsheet, a generally hydrophobic topsheet overlying and enclosing said absorbent core, and a pair of tape fasteners for securing said diaper in an operative position about the wearer''s waist, the improvement wherein said topsheet comprises two layers and wherein the inter-layer bonding between said topsheet layers is less strong than the intra-layer bonding between said topsheet and the remainder of said diaper, said diaper including a topsheet delamination initiation means comprising a release liner for at least one of said tape fasteners whereby said topsheet can be delaminated to allow separate disposal of the layers thereof.
Claim 3
Dependent Claim 17 words
The disposable diaper of claim 1 wherein said release liner comprises a tab affixed to said topsheet.

References Cited (Backward Citations)

US2693806A Cited
US3180335A Cited
US3315676A Cited
US3367334A Cited
US3400717A Cited
US3630201A Cited
US3636952A Cited
US3667466A Cited
US3794038A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-03-31 1978-09-30 1979-04-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-03-31 1982-09-30 1983-04-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-03-31 1986-09-30 1987-04-01 $7700.00 Window Closed / Lapsed

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