US3823748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Energy absorbent textile structure
Assignee: Celanese Corp
•
Filing: 1973-02-16
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Granted: 1974-07-16
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Expires: 1993-02-16
Abstract
Abstract Impact absorbent textile structures constructed of substantially unidirectional yarns having differential elongations at the break exhibit sufficient extensibility to minimize residual recovery without impairment of strength.
Inventors
- 👤 W Allman
- 👤 G Solmaz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:13
CPC Classifications
D; D03; D03D; D03D1/00; D03D1/0005; D03D15/00; D03D15/20; D03D15/208; D03D15/225; D03D15/283; D03D15/40; D03D15/41; D03D15/50; D03D15/573; D10; D10B; D10B2201/00; D10B2201/01; D10B2201/02; D10B2201/20; D10B2201/22; D10B2201/24; D10B2211/00; D10B2211/01; D10B2211/02; D10B2321/00; D10B2321/10; D10B2331/00; D10B2331/04; D10B2505/00; D10B2505/12; D10B2505/122
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
52 words
The structure of claim 1 wherein at least 70 weight percent of said warp yarns have an elongation at the break of from about 28 to 30 percent and less than about 30 weight percent of said warp yarns have an elongation at the break of from about 5 to 20 percent.
Claim 2
Dependent Claim
77 words
The fabric of claim 1 wherein about 75 to 80 weight percent of said warp yarns have an elongation at break of at least 28 percent, about 6 weight percent of said warp yarns have an elongation at break of about 20 percent, about 6 percent of said warp yarns have an elongation at break of about 10 percent and about 12 weight percent of said warp yarns have an elongation at break of about 5 perceNt.
Claim 3
Dependent Claim
34 words
The structure of claim 1 wherein said warp yarns having the highest percentage elongation at the break are in fields along the edges and in at least one centrally positioned area of said fabric.
References Cited (Backward Citations)
US2788023A
Cited
US2794450A
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US3148710A
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US3322163A
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US3296062A
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US3463202A
Cited
US3530904A
Cited
US3464459A
Cited
US3537488A
Cited
US3550956A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-15 | 1978-01-14 | 1978-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-15 | 1982-01-14 | 1982-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-15 | 1986-01-14 | 1986-07-16 | $7700.00 | Window Closed / Lapsed |