US3578492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sized twestless yarns
Assignee: EDGAR D BOLINGER
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Filing: 1969-06-13
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Granted: 1971-05-11
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Expires: 1989-06-13
Abstract
Abstract A TWISTLESS YARN CONTAINING AT LEAST SOME FIBERS HAVING INTERLOCKING CHARACTERISTICS IS DESCRIBED. THE YARN IS SIZED WITH A SIZING AGENT COMPRISING A FRICTIONING AGENT, A BINDING AGENT AND, OPTIONALLY, AN INSOLUBILIZING AGENT. AN EXAMPLE OF A FRICTIONING AGENT IS COLLOIDAL SILICA.
Inventors
- 👤 Edgar D Bolinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:25
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/22; D02G3/40; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2971; Y10T442/00; Y10T442/30; Y10T442/3049
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-10 | 1974-11-09 | 1975-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-10 | 1978-11-09 | 1979-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-10 | 1982-11-09 | 1983-05-11 | $7700.00 | Window Closed / Lapsed |