US3814660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Draftable non-twisted staple fiber band and process for the manufacture of a draftable staple fiber band of high density and breaking length
Assignee: Pavena AG
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Filing: 1971-10-18
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Granted: 1974-06-04
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Expires: 1991-10-18
Abstract
Abstract A NON-TWISTED CONSOLIDATED STAPLE FIBER SILVER POSSESSING HIGH DENSITY AND SMALL SPECIFIC VOLUME WHICH IS CAPABLE OF BEING DRIFTED. A DRIED FIXING AGENT SURROUNDEDS INDIVIDUAL FIBERS OF THE SILVER. THE FIXING AGENT BINDS THE FIBERS TO ONE ANOTHER SO STRONGLY THAT THE BREAKING LENGTH OF THE SILVER CONSIDERABLY EXCEEDS THAT OF A TWISTED ROVING FORMED OF THE SAME STAPLE FIBERS AS THE SILVER, YET NOT BONDED, AND POSSESSING THE SAME WEIGHT PER UNIT LENGTH AS THE BONDED STAPLE FIBER SILVER.
Inventors
- 👤 W Naegeli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:34
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/22; D02G3/40; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2904; Y10T428/2907; Y10T428/2913; Y10T428/2933; Y10T428/2938
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) | 1977-06-03 | 1977-12-03 | 1978-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-03 | 1981-12-03 | 1982-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-03 | 1985-12-03 | 1986-06-04 | $7700.00 | Window Closed / Lapsed |