US3837995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Autogenously bonded composite web
Assignee: Kimberly Clark Corp
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Filing: 1972-04-24
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Granted: 1974-09-24
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Expires: 1992-04-24
Abstract
Abstract AUTOGENOUSLY BONDED MULTI-PLY NONWOVEN WEB INCLUDING ONE OR MORE LAYERS OF SYNTHETIC, THERMOPLASTIC POLYMERIC MICROFIBERS AND ONE OR MORE LAYERS OF LARGER DIAMETER NATURAL FIBERS. BONDING IS OBTAINED BETWEEN THE LAYERS OF SYNTHETIC MICROFIBERS AND THE LAYERS OF NATURAL FIBERS BY CONTACT WITHOUT THE NEED FOR SUPPLEMENTAL BONDING. THE RESULTING COMPOSITE WEBS ARE STRONG, CONFORMABLE AND POSSESS OTHER DESIRABLE PROPERTIES DEPENDING UPON THE PARTICULAR LAYER COMPONENTS UTILIZED.
Inventors
- 👤 J Floden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:33
CPC Classifications
B; B32; B32B; B32B17/00; B32B17/02; B32B5/00; B32B5/02; B32B5/022; B32B5/024; D; D04; D04H; D04H1/00; D04H1/04; D21; D21H; D21H27/00; D21H27/30; B32B2262/00; B32B2262/02; B32B2262/0253; B32B2323/00; B32B2323/10; D21H11/00; D21H11/12; D21H13/00; D21H13/02; D21H13/08; D21H13/10; D21H13/12; D21H13/14; D21H13/18; D21H13/20; D21H13/24; D21H13/26; D21H13/28; D21H13/34; Y; Y10; Y10T; Y10T442/00; Y10T442/60; Y10T442/608; Y10T442/614; Y10T442/62; Y10T442/627; Y10T442/659; Y10T442/668
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |