Patent US3586000A successfully refreshed from Google Patents.
US3586000A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable diaper
Assignee: Johnson and Johnson
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Filing: 1968-11-15
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Granted: 1971-06-22
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Expires: 1988-11-15
Abstract
Abstract A substantially rectangular disposable diaper having a waterproof backing sheet and an absorbent permeable facing sheet with the backing and facing sheets being substantially coextensive. The backing and facing sheets are adhered or secured together along their longitudinal edges. Between the sheets is a layer of fluffy absorbent material encased in tissue and extending the full length of the sheets but only partially across the width of said sheets.
Inventors
- 👤 Irving S Ness
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:23
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/51; A61F13/515; A61F13/53; A61F13/56; A61F13/5622
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
147 words
A substantially rectangular disposable diaper comprising a thin, waterproof backing sheet and a thin, moisture permeable facing sheet, said backing sheet and said facing sheet being substantially coextensive and being secured together along their longitudinal edges, and an absorbent core disposed between said facing and said backing sheets extending the entire length of said sheets but onlY across a portion of the width of said sheets, said absorbent core comprising a center layer of fluffed woodpulp fibers encased in outer layers of tissue said outer layers being secured together at all open edges, said waterproof backing sheet being a polyolefin film and said facing sheet being a nonwoven fabric and wherein said film overlies said nonwoven fabric along the longitudinal edges thereof and is secured thereto and wherein the center layer of woodpulp fibers is encased in wet strength tissue which is embossed along its open edges.
Claim 2
Dependent Claim
147 words
A substantially rectangular disposable diaper comprising a thin, waterproof backing sheet and a thin, moisture permeable facing sheet, said backing sheet and said facing sheet being substantially coextensive and being secured together along their longitudinal edges, and an absorbent core disposed between said facing and said backing sheets extending the entire length of said sheets but onlY across a portion of the width of said sheets, said absorbent core comprising a center layer of fluffed woodpulp fibers encased in outer layers of tissue said outer layers being secured together at all open edges, said waterproof backing sheet being a polyolefin film and said facing sheet being a nonwoven fabric and wherein said film overlies said nonwoven fabric along the longitudinal edges thereof and is secured thereto and wherein the center layer of woodpulp fibers is encased in wet strength tissue which is embossed along its open edges.
Claim 3
Dependent Claim
198 words
A substantially rectangular disposable diaper comprising: a thin, waterproof polyolefin backing sheet; a thin, absorbent, moisture permeable nonwoven fabric facing sheet, said backing sheet overlapping the longitudinal edges of said facing sheet, with said backing sheet and said facing sheet having the same length and being substantially coextensive and being adhesively secured together along their overlapped longitudinal edges; and an absorbent core disposed between and in direct contact with said facing and said backing sheets extending the entire length of said sheets but only across a portion of the width of said sheets, said absorbent core comprising a center layer of fluffed woodpulp fibers completely encased in outer layers of wet strength tissue paper, said outer layers of wet strength tissue paper being secured together at all open edges to completely encase the layer of woodpulp fibers, said layers of wet strength tissue paper extending the entire length of said facing and backing sheets but only across a portion of the width of said sheets, whereby means to attach the diaper about the waist of an infant do not contact the wet strength tissue paper to tear or rip the same and expose the layer of woodpulp fibers.
Claim 4
Dependent Claim
198 words
A substantially rectangular disposable diaper comprising: a thin, waterproof polyolefin backing sheet; a thin, absorbent, moisture permeable nonwoven fabric facing sheet, said backing sheet overlapping the longitudinal edges of said facing sheet, with said backing sheet and said facing sheet having the same length and being substantially coextensive and being adhesively secured together along their overlapped longitudinal edges; and an absorbent core disposed between and in direct contact with said facing and said backing sheets extending the entire length of said sheets but only across a portion of the width of said sheets, said absorbent core comprising a center layer of fluffed woodpulp fibers completely encased in outer layers of wet strength tissue paper, said outer layers of wet strength tissue paper being secured together at all open edges to completely encase the layer of woodpulp fibers, said layers of wet strength tissue paper extending the entire length of said facing and backing sheets but only across a portion of the width of said sheets, whereby means to attach the diaper about the waist of an infant do not contact the wet strength tissue paper to tear or rip the same and expose the layer of woodpulp fibers.
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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) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |