US3570235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite multifilament yarn
Assignee: Toray Industries Inc
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Filing: 1968-10-15
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Granted: 1971-03-16
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Expires: 1988-10-15
Abstract
Abstract A MULTIFILAMENT YARN COMPRISING A PLURALITY OF FILAMENTS COMPOSED OF TWO KINDS OF THERMOPLASTIC HIGH POLYMERS HAVING DIFFERENT VISCOSITIES AND ARRANGED IN AN ECCENTRIC DISPOSITION IN THE CROSS SECTION OF EACH FILAMENT. MATERIAL HIGH-POLYMERS SHOULD PREFERABLY BE CHOSEN FROM POLYESTER GROUPS AND THE DIFFERENCE IN VISCOSITIES THEREOF SHOULD BE LARGE THAN 0.05. A FABRIC CONTAINING THE YARNS CAN BE PROVIDED WITH ENHANCED BULKINESS TOGETHER WITH UNIQUE HANDLING QUALITY.
Inventors
- 👤 Mototada Fukuhara
- 👤 Akira Ueno
- 👤 Isao Nihei
- 👤 Chikara Sano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:37
CPC Classifications
D; D01; D01F; D01F8/00; D01F8/04; D01F8/14; D01D; D01D5/00; D01D5/28; D01D5/30; Y; Y10; Y10S; Y10S57/00; Y10S57/905; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2922; Y10T428/2924
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1974-03-15 | 1974-09-14 | 1975-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-15 | 1978-09-14 | 1979-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-15 | 1982-09-14 | 1983-03-16 | $7700.00 | Window Closed / Lapsed |