US3875943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diaper
Assignee: Colgate Palmolive Co
•
Filing: 1973-09-04
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Granted: 1975-04-08
•
Expires: 1993-09-04
Abstract
Abstract A disposable diaper comprising a waterproof back sheet, a hydrophobic sheet, and an absorbent pad sandwiched between the back sheet and the face sheet. The diaper is folded to define a box pleated configuration having a central panel, inwardly extending panels and outwardly extending panels with the inner edges of the inwardly extending panels being in abutting or substantially abutting relationship.
Inventors
- 👤 John L Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:21
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/45; A61F13/49; A61F13/494; A61F13/49406; A61F13/49446; A61F13/49453
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
136 words
A disposable diaper comprising a waterproof back sheet, a hydrophobic face sheet, and an absorbent pad impregnated with a volatile material sandwiched between said back sheet and said face sheet, said back sheet, said face sheet and said pad being formed into a pleated configuration in at least the crotch region thereof by means of a plurality of longitudinal folds, said longitudinal folds defining a pair of opposed portions extending inwardly into abutting relationship thereby reducing the loss of said volatile material especially in the crotch area, said pad being of less width than said back sheet, said face sheet being of greater width than said pad but less than said back sheet, said back sheet having oppositely disposed side flap portions overlying the side edges of said face sheet and terminating outwardly of said pad.
Claim 2
Dependent Claim
136 words
A disposable diaper comprising a waterproof back sheet, a hydrophobic face sheet, and an absorbent pad impregnated with a volatile material sandwiched between said back sheet and said face sheet, said back sheet, said face sheet and said pad being formed into a pleated configuration in at least the crotch region thereof by means of a plurality of longitudinal folds, said longitudinal folds defining a pair of opposed portions extending inwardly into abutting relationship thereby reducing the loss of said volatile material especially in the crotch area, said pad being of less width than said back sheet, said face sheet being of greater width than said pad but less than said back sheet, said back sheet having oppositely disposed side flap portions overlying the side edges of said face sheet and terminating outwardly of said pad.
Claim 3
Dependent Claim
77 words
A disposable diaper according to claim 1, wherein said pad is smaller in length than said back sheet and said face sheet so that said back sheet and said face sheet abut each other about the periphery of said pad adhesive means securing said face sheet to said back sheet outwardly of the periphery of said pad, and means bonding said inwardly extending panel to said central panel in at least the crotch region of the diaper.
References Cited (Backward Citations)
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US3636952A
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US3658063A
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US3688767A
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US3776233A
Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-07 | 1978-10-07 | 1979-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-07 | 1982-10-07 | 1983-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-07 | 1986-10-07 | 1987-04-08 | $7700.00 | Window Closed / Lapsed |