USRE27820E
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water absorbent web and its production
Assignee: —
•
Filing: 1972-08-29
•
Granted: 1973-11-27
•
Expires: 1992-08-29
Abstract
Abstract A WEB WHICH IS SOFT AND RAPIDLY AND HIGHLY WATER ABSORBENT WHEN BOTH WET AND DRY IS PRODUCED BY SANDWICHING UNDER PRESSURE A LAYER OF CELLULOSE PULP FIBER REINFORCED, FOAMED VISCOSE BETWEEN THIN FLEECES OF UNBONDED COTTON FIBERS AND REGENERATING THE VISCOSE CELLULOSE. THE PRODUCT IS A RETICULATED MATRIX OF REGENERATED CELLULOSE AND DISPERSED PULP FIBERS WITH THE FLEECE FIBERS EMBEDDED IN THE OPPOSITE FACES OF THE REGENERATED CELLULOSE LAYER.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:29
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/58; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249986
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) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |