US3563685A
Expired / Lapsed
US
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Dyeing polyamide fibers with a yellow monazo acid dye
Assignee: EIDP Inc
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Filing: 1967-04-27
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Granted: 1971-02-16
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Expires: 1987-04-27
Abstract
Abstract DYEING POLYAMIDE FIBERS WITH A DYEBATH CONTAINING DISODIUM DODECYLIDIPHENYLETHER DISULFONATE AND THE YELLOW ACID DYE OF THE FOLLOWING STRUCTURE 1-(4-CL-PHENYL),3-CH3,4-((2-CL,5-(M-O3S-)PHENYL)-N=N-)- PYRAZOLE WHERE M IS H, AMMONIUM RADICAL OR ALKALI METAL.
Inventors
- 👤 Stanley B Speck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:15
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/62; D06P1/621; D06P1/622; D06P1/625; D06P3/00; D06P3/02; D06P3/04; D06P3/24; D06P3/241; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/924; Y10S8/929
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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |