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
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 00:10
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)
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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) | 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 |