US3650882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-ply paper towel
Assignee: Kimberly Clark Corp
•
Filing: 1969-07-11
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Granted: 1972-03-21
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Expires: 1989-07-11
Abstract
Abstract A multi-ply absorbent creped cellulose wadding paper tissue material in which an elastically extensible inner web of creped tissue paper has on its major faces at least one embossed paper tissue material of greater dryer basis weight and lesser extensibility. The outer webs are bonded to the inner web (or webs) in spaced regions to provide unbonded zones between bonds. The adhesive is sufficiently water resistant to permit retention of the webs when wetted so that the inner creped web may expand and fill the unbonded zones providing good bulk in the wet product. Methods of effecting the web combinations are described.
Inventors
- 👤 Gordon D Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:18
CPC Classifications
A; A47; A47K; A47K10/00; A47K10/16; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1023; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24446; Y10T428/24455; Y10T428/24463; Y10T428/24479; Y10T428/24562; Y10T428/24802; Y10T428/24826; Y10T428/24942
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
26 words
A multi-ply material according to claim 1 in which the extensibility of the inner web is at least about two times that of an outer web.
Claim 2
Dependent Claim
31 words
A multi-ply material according to claim 1 in which the inner web has a dryer basis weight which is approximately one-half to three-quarters of the basis weight of an outer web.
Claim 3
Dependent Claim
64 words
A multi-ply material according to claim 1 in which the outer webs have a dryer basis weight of between about 9 and 15 pounds and the inner web has a dryer basis weight of between about 5 and 9 pounds per 2,880 sq. ft. and the elongation of said inner web at break is at least about two times that of an outer web.
References Cited (Backward Citations)
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US2831050A
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US3327708A
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US3337388A
Cited
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Cited
US3377224A
Cited
US3547723A
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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) | 1975-03-21 | 1975-09-20 | 1976-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-21 | 1979-09-20 | 1980-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-21 | 1983-09-20 | 1984-03-21 | $7700.00 | Window Closed / Lapsed |