Patent US3799167A successfully refreshed from Google Patents.
US3799167A
Expired / Lapsed
US
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Disposable absorbent pad
Assignee: Cellu Products Co Inc
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Filing: 1971-12-30
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Granted: 1974-03-26
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Expires: 1991-12-30
Abstract
Abstract An absorbent pad structure is provided of the sort that is arranged to be disposable and that is particularly suited for use in forming disposable diapers. The disclosed structure incorporates pad means of moisture permeable material having a peripheral margin thereof rendered moisture impermeable and a moisture impermeable backing sheet secured at the peripheral margin of the pad means.
Inventors
- 👤 A Miller
- 👤 G Currie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:38
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/45; A61F13/47; A61F13/475; A61F13/4751; A61F13/4755; A61F13/49; A61F13/494; A61F13/49473; A61F13/51; A61F13/511; A61F13/513; A61F13/51305; A61F13/53; A61F13/534; A61F2013/51002; A61F2013/51038; A61F2013/51042; A61F2013/51059; A61F2013/51061; A61F13/514; A61F13/51401; A61F2013/51409; A61F2013/530131; A61F2013/53445
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A disposable absorbent pad comprising a moisture impermeable backing sheet, a core pad of abosrbent material superimposed on said backing sheet, and a moisture impermeable covering sheet applied to said core pad, said backing and covering sheets corresponding in size and extending peripherally beyond said core pad, and said covering sheet being treated to render the same moisture impermeable at a continuous peripheral margin thereof reaching inwardly over a substantial peripheral portion of said core pad and being secured to said back sheet throughout the entire peripheral extent of said margin so as to form a seal thereat against lateral escape of moisture from said core pad in any direction.
Claim 2
Dependent Claim
110 words
A disposable absorbent pad comprising a moisture impermeable backing sheet, a core pad of abosrbent material superimposed on said backing sheet, and a moisture impermeable covering sheet applied to said core pad, said backing and covering sheets corresponding in size and extending peripherally beyond said core pad, and said covering sheet being treated to render the same moisture impermeable at a continuous peripheral margin thereof reaching inwardly over a substantial peripheral portion of said core pad and being secured to said back sheet throughout the entire peripheral extent of said margin so as to form a seal thereat against lateral escape of moisture from said core pad in any direction.
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) | 1977-03-25 | 1977-09-24 | 1978-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-25 | 1981-09-24 | 1982-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-25 | 1985-09-24 | 1986-03-26 | $7700.00 | Window Closed / Lapsed |