US2626883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nonwoven rayon fabric
Assignee: 3M Co
•
Filing: 1950-06-03
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Granted: 1953-01-27
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Expires: 1970-06-03
Abstract
No abstract record available.
Inventors
- 👤 Alvin W Boese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:47
CPC Classifications
D; D04; D04H; D04H5/00; D04H5/06; D04H1/00; D04H1/40; D04H1/42; D04H1/425; D04H1/4258; D04H1/54; D04H1/541; D04H1/5418; D04H1/559; D04H3/00; D04H3/02; D04H3/04; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249924; Y10T428/27; Y10T428/31; Y10T442/00; Y10T442/20; Y10T442/241; Y10T442/60; Y10T442/69; Y10T442/692
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
A NON-WOVEN RAYON FABRIC OF THE CHARACTER DESCRIBED, ESSENTIALLY CONSISTING OF A TISSUE-LIKE WEB SERVING AS THE BASE LAYER AND FORMED OF A COMPACTED CARDED MIXTURE OF STAPLE VISCOSE RAYON FIBERS AND PLASTICIZED STAPLE ACETATE RAYON FIBERS WHICH BOTH HAVE A LENGTH OF AT LEAST APPROXIMATELY ONE INCH, SAID ACETATE RAYON FIBERS BEING IN THE PROPORTION OF ABOUT 50 TO 65% BY WEIGHT AND BEING AUTOGENOUSLY INTERBONDED AT THEIR CROSSING POINTS TO FORM A NETWORK WITHIN WHICH THE VISCOSE RAYON FIBERS ARE DISTRIBUTED, AND A MONOLAYER OF ALIGNED YARNS OF NON-PLASTICIZED CONTINUOUS ACETATE RAYON FILAMENTS LAMINATED TO ONE FACE OF SAIDD TISSUE-LIKE WEB BY AUTOGENOUS BONDING TO SAID PLASTICIZED ACETATE RAYON FIBERS, THE COMPOSITE RAYON FABRIC BEING IMPREGNATED BY A FLEXIBLE WATER-RESISTANT SIZING THAT SUPERFICIALLY COATS THE YARNS WITHOUT MATERIALLY STIFFENING THE FABRIC, AND THE FABRIC HAVING A HIGH SHEEN ON THE YARN SIDE.
Claim 2
Dependent Claim
144 words
A NON-WOVEN RAYON FABRIC OF THE CHARACTER DESCRIBED, ESSENTIALLY CONSISTING OF A TISSUE-LIKE WEB SERVING AS THE BASE LAYER AND FORMED OF A COMPACTED CARDED MIXTURE OF STAPLE VISCOSE RAYON FIBERS AND PLASTICIZED STAPLE ACETATE RAYON FIBERS WHICH BOTH HAVE A LENGTH OF AT LEAST APPROXIMATELY ONE INCH, SAID ACETATE RAYON FIBERS BEING IN THE PROPORTION OF ABOUT 50 TO 65% BY WEIGHT AND BEING AUTOGENOUSLY INTERBONDED AT THEIR CROSSING POINTS TO FORM A NETWORK WITHIN WHICH THE VISCOSE RAYON FIBERS ARE DISTRIBUTED, AND A MONOLAYER OF ALIGNED YARNS OF NON-PLASTICIZED CONTINUOUS ACETATE RAYON FILAMENTS LAMINATED TO ONE FACE OF SAIDD TISSUE-LIKE WEB BY AUTOGENOUS BONDING TO SAID PLASTICIZED ACETATE RAYON FIBERS, THE COMPOSITE RAYON FABRIC BEING IMPREGNATED BY A FLEXIBLE WATER-RESISTANT SIZING THAT SUPERFICIALLY COATS THE YARNS WITHOUT MATERIALLY STIFFENING THE FABRIC, AND THE FABRIC HAVING A HIGH SHEEN ON THE YARN SIDE.
References Cited (Backward Citations)
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Cited
US2332233A
Cited
US2354702A
Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-27 | 1956-07-28 | 1957-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-27 | 1960-07-28 | 1961-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-27 | 1964-07-28 | 1965-01-27 | $7700.00 | Window Closed / Lapsed |