US3761348A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bicomponent filament
Assignee: Monsanto Co
•
Filing: 1972-02-17
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Granted: 1973-09-25
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Expires: 1992-02-17
Abstract
Abstract A HELICALLY CRIMPED BICOMPONENT TEXTILE FILAMENT AND TEXTILE PRODUCTS MADE THEREFROM ARE PROVIDED. ONE COMPONENT IS COMPOSED OF AN ELASTOMERIC POLYURETHANE MELT SPINNABLE AT A TEMPERATURE OF ABOUT 205*-240*C. AND CONTAINING A BLOCK POLYURETHANE SEGMENT MELTING HIGHER THAN ABOUT 200*C. AND BELOW ABOUT 235*C. THE OTHER COMPONENT IS COMPOSED OF A POLYMERIC LINEAR HYDROXY CARBOXYLIC ACID ESTER HAVING A MELTING POINT IN THE RANGE OF 180*-240*C.
Inventors
- 👤 J Chamberlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:08
CPC Classifications
D; D01; D01F; D01F8/00; D01F8/04; D01F8/10; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2922; Y10T428/2925; Y10T428/2929; Y10T428/2931; Y10T428/2973; Y10T442/00; Y10T442/30; Y10T442/3146; Y10T442/3154
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) | 1976-09-24 | 1977-03-26 | 1977-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-24 | 1981-03-26 | 1981-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-24 | 1985-03-26 | 1985-09-25 | $7700.00 | Window Closed / Lapsed |