Patent US3676906A successfully refreshed from Google Patents.
US3676906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making a patterned fabric by using differential shrinkage yarns
Assignee: Imperial Chemical Industries Ltd
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Filing: 1970-06-16
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Granted: 1972-07-18
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Expires: 1990-06-16
Abstract
Abstract This invention relates to a process of making woven or knitted fabrics which in their construction include yarns that contain or consist of melt colored polyester staple fibers and at least some of the yarn contains or consist of polyester staple fibers of at least 25 percent shrinkage.
Inventors
- 👤 Philip William Eggleston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:30
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A process according to claim 1 wherein the fabric contains 65- 90 percent by weight of polyester staple fibers of which 15-40 percent by weight of the fabric have a shrinkage of at least 25 percent and 75- 25 percent by weight of the fabric have a normal shrinkage and 35- 10 percent by weight of the fabric of cellulosic or wool fibers, said method including subjecting the fabric to a shrinkage treatment at at least 55* C.
Claim 2
Dependent Claim
13 words
A process as in claim 2 wherein the polyester fibers are polyethylene terephthalate.
References Cited (Backward Citations)
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US3335466A
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US3438193A
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US3371475A
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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) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |