US2686104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elimination of black specks from textile yarn
Assignee: EIDP Inc
•
Filing: 1951-03-20
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Granted: 1954-08-10
•
Expires: 1971-03-20
Abstract
No abstract record available.
Inventors
- 👤 Clark Robert Ellis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:04
CPC Classifications
D; D01; D01F; D01F2/00; D01F2/06; D01F2/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
IN THE PROCESS OF SPINNING VISCOSE RAYON INTO AN ACID SALT BATH, THE IMPROVEMENT OF INCORPORATING SOLELY IN THE BATH FROM 0.01% TO 0.1% OF A SALICYL COMPOUND OF THE GROUP CONSISTING OF SALICYLIC ACID, SALICYLALDEHYDE, SALICYLAL ETHANOLAMINE, DISALICYLAL EHTYLENE DIAMINE AND DISALICYLAL PROPYLENE DIAMINE THE QUANTITIES OF SALICYL COMPOUND EMPLOYED IN THE PROCESS BEING SUITABLE TO AVOID THE FORMATION OF LEAD SPEAKS IN THE FINISHED YARN WITHOUT OTHERWISE CHANGING THE PROPERTIES OF THE YARN.
Claim 2
Dependent Claim
75 words
IN THE PROCESS OF SPINNING VISCOSE RAYON INTO AN ACID SALT BATH, THE IMPROVEMENT OF INCORPORATING SOLELY IN THE BATH FROM 0.01% TO 0.1% OF A SALICYL COMPOUND OF THE GROUP CONSISTING OF SALICYLIC ACID, SALICYLALDEHYDE, SALICYLAL ETHANOLAMINE, DISALICYLAL EHTYLENE DIAMINE AND DISALICYLAL PROPYLENE DIAMINE THE QUANTITIES OF SALICYL COMPOUND EMPLOYED IN THE PROCESS BEING SUITABLE TO AVOID THE FORMATION OF LEAD SPEAKS IN THE FINISHED YARN WITHOUT OTHERWISE CHANGING THE PROPERTIES OF THE YARN.
References Cited (Backward Citations)
US2129709A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-09 | 1958-02-08 | 1958-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-09 | 1962-02-08 | 1962-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-09 | 1966-02-08 | 1966-08-10 | $7700.00 | Window Closed / Lapsed |