US3563242A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diaper
Assignee: Individual
•
Filing: 1968-01-25
•
Granted: 1971-02-16
•
Expires: 1988-01-25
Abstract
Abstract A diaper including a thin and flexible, plastic back sheet or swaddle, which is contoured and dimensioned to enable the person handling the infant to adjust it about the infant without separate fastening means, and in which an absorbent pad is removably inserted. The pad comprises one or more covering sheets enclosing wadding having a barrier sheet of liquid-resistant material for enhancing the uniform distribution of fluid through the wadding.
Inventors
- 👤 Bengt Hedstrom
- 👤 Ebbe Hoden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:39
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/505; A61F13/53; A61F13/534; A61F13/537; A61F13/53704; A61F13/53708; A61F13/56; A61F13/66; A61F13/74; A61F13/76
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
111 words
A disposable pad for a diaper consisting of: a. an outer tubular covering comprising a porous, nonwoven, cellulosic sheet material treated with a hydrophobic substance to increase its wet strength while maintaining its liquid permeable characteristics; b. liquid absorbent wadding comprising at least two layers of fluffed cellulosic material; c. a liquid barrier sheet composed of a hydrophobic sheet material and interposed between and separating the layers of said wadding; d. at least one ply of moisture absorbent sheet material interposed between said wadding and said tubular outer covering; and e. the opposite end portions of said tubular covering being compressed to be substantially flatter than the remainder of said pad.
Claim 2
Dependent Claim
111 words
A disposable pad for a diaper consisting of: a. an outer tubular covering comprising a porous, nonwoven, cellulosic sheet material treated with a hydrophobic substance to increase its wet strength while maintaining its liquid permeable characteristics; b. liquid absorbent wadding comprising at least two layers of fluffed cellulosic material; c. a liquid barrier sheet composed of a hydrophobic sheet material and interposed between and separating the layers of said wadding; d. at least one ply of moisture absorbent sheet material interposed between said wadding and said tubular outer covering; and e. the opposite end portions of said tubular covering being compressed to be substantially flatter than the remainder of said pad.
Claim 3
Dependent Claim
98 words
A diaper comprising: a. a disposable pad as claimed in Claim 1; b. a swaddle sheet of thin, flexible, liquid-impervious material; and c. said swaddle sheet being notched, having two lateral pairs of oppositely extending integral tie ends to provide leg openings for the infant when the swaddle sheet is adjusted about the infant, and being contoured and dimensioned so as to permit the opposite longitudinal edges thereof to be folded over the end portions of the pad and to permit the integral tie ends to be pulled about the infant and tied together adjacent the hip portion.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |