Patent US3349458A successfully refreshed from Google Patents.
US3349458A
Expired / Lapsed
US
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Process for producing an elastic fabric
Assignee: EIDP Inc
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Filing: 1965-10-14
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Granted: 1967-10-31
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Expires: 1985-10-14
Abstract
No abstract record available.
Inventors
- 👤 Mainz Michael Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:22
CPC Classifications
D; D06; D06C; D06C29/00; D02; D02G; D02G3/00; D02G3/22; D02G3/32; D02G3/328; D03; D03D; D03D15/00; D03D15/50; D03D15/56; D10; D10B; D10B2211/00; D10B2211/01; D10B2211/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
IN A PROCESS FOR PRODUCING AN ELASTIC FABRIC CONTAINING CORE-SPUN SPANDEX/WOOL YARN PREPARED FROM A TENSIONED SPANDEX FILAMENT AND A ROVING OF DYED WOOL FIBERS, THE IMPROVEMENT WHICH COMPRISES (1) USING A CORE-SPUN YARN HAVING A TWIST MULTIPLIER OF AT LEAST 3 AND CONTAINING AT MOST ABOUT 20% SPANDEX BY WEIGHT, (2) WEAVING SAID CORE-SPUN YARN TO FORM A FABRIC WHICH IS CAPABLE OF BEING STRETCHED FROM ABOUT 10% TO ABOUT 50% IN AT LEAST ONE DIRECTION, AND (3) THEREAFTER, IN EITHER ORDER, (A) WET-FINISHING SAID FABRIC IN THE EXTENDED STATE AT A TEMPERATURE OF AT MOST 71*C. AND AT A PH OF BETWEEN 1 AND 8, AND (B) STRETCHING AND HEATSETTING SAID FABRIC AT A TEMPERATURE OF AT LEAST 160*C.
Claim 2
Dependent Claim
121 words
IN A PROCESS FOR PRODUCING AN ELASTIC FABRIC CONTAINING CORE-SPUN SPANDEX/WOOL YARN PREPARED FROM A TENSIONED SPANDEX FILAMENT AND A ROVING OF DYED WOOL FIBERS, THE IMPROVEMENT WHICH COMPRISES (1) USING A CORE-SPUN YARN HAVING A TWIST MULTIPLIER OF AT LEAST 3 AND CONTAINING AT MOST ABOUT 20% SPANDEX BY WEIGHT, (2) WEAVING SAID CORE-SPUN YARN TO FORM A FABRIC WHICH IS CAPABLE OF BEING STRETCHED FROM ABOUT 10% TO ABOUT 50% IN AT LEAST ONE DIRECTION, AND (3) THEREAFTER, IN EITHER ORDER, (A) WET-FINISHING SAID FABRIC IN THE EXTENDED STATE AT A TEMPERATURE OF AT MOST 71*C. AND AT A PH OF BETWEEN 1 AND 8, AND (B) STRETCHING AND HEATSETTING SAID FABRIC AT A TEMPERATURE OF AT LEAST 160*C.
References Cited (Backward Citations)
US3038295A
Cited
US3145132A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-30 | 1971-05-01 | 1971-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-30 | 1975-05-01 | 1975-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-30 | 1979-05-01 | 1979-10-31 | $7700.00 | Window Closed / Lapsed |