Patent US3383192A successfully refreshed from Google Patents.
Patent US2810281A successfully refreshed from Google Patents.
US2810281A
Expired / Lapsed
US
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Textile articles and processes for making same
Assignee: Delaware Mills Inc
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Filing: 1954-11-01
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Granted: 1957-10-22
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Expires: 1974-11-01
Abstract
No abstract record available.
Inventors
- 👤 William C Appleton
- 👤 William H Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:13
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/18; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2973; Y10T428/2976; Y10T442/00; Y10T442/40; Y10T442/425
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A TWISTED YARN COMPOSED OF A BLEND OF TWO GROUPS OF STAPLE-LENGTH TEXTILE FIBERS OF A POLYMER OF ACRYLONITRILE CONTAINING AT LEAST 80% BY WEIGHT OF ACRYLONITRILE IN THE POLYMER MOLECULE, WHICH FIBERS IN RESPONSE TO STRETCHING CAN BE MADE TO ASSUME A FIRST STATE OF RELATIVELY GREAT DIMENSIONAL INSTABILITY AND WHICH CAN BE RELAXED TO A SECOND STATE OF RELATIVE STABILITY WITH ACCOMPANYING LONGITUDINAL SHRINKAGE BY SUBSEQUENT APPLICATION OF HEAT, THE FIBERS OF ONE OF SAID GROUPS BEING IN SAID
Claim 2
Dependent Claim
81 words
A TWISTED YARN COMPOSED OF A BLEND OF TWO GROUPS OF STAPLE-LENGTH TEXTILE FIBERS OF A POLYMER OF ACRYLONITRILE CONTAINING AT LEAST 80% BY WEIGHT OF ACRYLONITRILE IN THE POLYMER MOLECULE, WHICH FIBERS IN RESPONSE TO STRETCHING CAN BE MADE TO ASSUME A FIRST STATE OF RELATIVELY GREAT DIMENSIONAL INSTABILITY AND WHICH CAN BE RELAXED TO A SECOND STATE OF RELATIVE STABILITY WITH ACCOMPANYING LONGITUDINAL SHRINKAGE BY SUBSEQUENT APPLICATION OF HEAT, THE FIBERS OF ONE OF SAID GROUPS BEING IN SAID
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-21 | 1961-04-22 | 1961-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-21 | 1965-04-22 | 1965-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-21 | 1969-04-22 | 1969-10-22 | $7700.00 | Window Closed / Lapsed |