US3357076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Yarn and fabrics having stretch properties
Assignee: Celanese Corp
•
Filing: 1965-12-27
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Granted: 1967-12-12
•
Expires: 1985-12-27
Abstract
No abstract record available.
Inventors
- 👤 Emmett F Greenwald
- 👤 Eugene E Neff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:39
CPC Classifications
D; D02; D02J; D02J1/00; D02J1/22; D02J1/229; D02G; D02G3/00; D02G3/22; D02G3/32; D02G3/328; D03; D03D; D03D15/00; D03D15/50; D03D15/56; Y; Y10; Y10S; Y10S264/00; Y10S264/77; Y10T; Y10T442/00; Y10T442/30; Y10T442/3008; Y10T442/3024
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
61 words
METHOD FOR MAKING A COMPOSITE YARN HAVING STRETCH PROPERTIES WHICH COMPRISES WRAPPING AN UNEXTENDED, NONHEATSET ELASTIC CORE STRAND WITH AT LEAST ONE WRAPPING STRAND COMPOSED OF UNDRAWN SYNTHETIC FILAMENTARY MATERIAL, EXTENDING SAID WRAPPED YARN IN AN AMOUNT SUFFICIENT TO DRAW SAID UNDRAWN MATERIAL, AT LEAST PARTIALLY RELAXING SAID EXTENDED WRAPPED YARN, AND HEATSETTING SAID COMPOSITE YARN IN ITS PARTIALLY RELAXED STATE.
Claim 2
Dependent Claim
61 words
METHOD FOR MAKING A COMPOSITE YARN HAVING STRETCH PROPERTIES WHICH COMPRISES WRAPPING AN UNEXTENDED, NONHEATSET ELASTIC CORE STRAND WITH AT LEAST ONE WRAPPING STRAND COMPOSED OF UNDRAWN SYNTHETIC FILAMENTARY MATERIAL, EXTENDING SAID WRAPPED YARN IN AN AMOUNT SUFFICIENT TO DRAW SAID UNDRAWN MATERIAL, AT LEAST PARTIALLY RELAXING SAID EXTENDED WRAPPED YARN, AND HEATSETTING SAID COMPOSITE YARN IN ITS PARTIALLY RELAXED STATE.
Claim 3
Dependent Claim
76 words
METHOD FOR MAKING A STRETCH FABRIC WHICH COMPRISES WRAPPING AN UNEXTENDED, NON-HEATSET ELASTIC CORE STRAND WITH AT LEAST ONE WRAPPPING STRAND COMPOSED OF UNDRAWN SYNTHETIC FILAMENTARY MATERIAL, FORMING SAID WRAPPED YARN INTO FABRIC MATERIAL, SUBJECTING THE FABRIC TO AN EXTENDING FORCE SUFFICIENT TO DRAW SAID UNDRAWN MATERIAL, AT LEAST PARTIALLY RELAXING SAID EXTENDING FORCE THEREBY ALLOWING SAID FABRIC TO AT LEAST PARTIALLY CONTRACT FROM ITS EXTENDED DIRECTION, AND HEATSETTING SAID FABRIC IN ITS PARTIALLY CONTRACTED STATE.
Claim 4
Dependent Claim
76 words
METHOD FOR MAKING A STRETCH FABRIC WHICH COMPRISES WRAPPING AN UNEXTENDED, NON-HEATSET ELASTIC CORE STRAND WITH AT LEAST ONE WRAPPPING STRAND COMPOSED OF UNDRAWN SYNTHETIC FILAMENTARY MATERIAL, FORMING SAID WRAPPED YARN INTO FABRIC MATERIAL, SUBJECTING THE FABRIC TO AN EXTENDING FORCE SUFFICIENT TO DRAW SAID UNDRAWN MATERIAL, AT LEAST PARTIALLY RELAXING SAID EXTENDING FORCE THEREBY ALLOWING SAID FABRIC TO AT LEAST PARTIALLY CONTRACT FROM ITS EXTENDED DIRECTION, AND HEATSETTING SAID FABRIC IN ITS PARTIALLY CONTRACTED STATE.
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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) | 1970-12-11 | 1971-06-12 | 1971-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-11 | 1975-06-12 | 1975-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-11 | 1979-06-12 | 1979-12-12 | $7700.00 | Window Closed / Lapsed |