US3153315A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Kasha-type yarn
Assignee: Celanese Corp
•
Filing: 1960-12-12
•
Granted: 1964-10-20
•
Expires: 1980-12-12
Abstract
No abstract record available.
Inventors
- 👤 James B Arthur
- 👤 Malcolm R Livingston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:27
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/22; D02G3/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A TWISTED KASHA-TYPE YARN COMPRISING A COMBINATION OF A BASE FIBER COMPONENT AND AN EFFECT FIBER COMPONENT, SAID BASE FIBER COMPONENT BEING A STAPLE FIBER STRUCTURE, AND SAID EFFECT FIBER COMPONENT BEING LENGTHS OF A BULKY YARN CONTAINING LOOPS, CURLS AND WHORLS AND HAVING A TENACITY OF LESS THAN 0.5 GRAM PER DENIER AND ABOUT 0.2 TO 5 TURNS PER INCH.
Claim 2
Dependent Claim
61 words
A TWISTED KASHA-TYPE YARN COMPRISING A COMBINATION OF A BASE FIBER COMPONENT AND AN EFFECT FIBER COMPONENT, SAID BASE FIBER COMPONENT BEING A STAPLE FIBER STRUCTURE, AND SAID EFFECT FIBER COMPONENT BEING LENGTHS OF A BULKY YARN CONTAINING LOOPS, CURLS AND WHORLS AND HAVING A TENACITY OF LESS THAN 0.5 GRAM PER DENIER AND ABOUT 0.2 TO 5 TURNS PER INCH.
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) | 1967-10-20 | 1968-04-20 | 1968-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-20 | 1972-04-20 | 1972-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-20 | 1976-04-20 | 1976-10-20 | $7700.00 | Window Closed / Lapsed |