US3085848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dyeing polyacrylonitrile and cellulosic blends with vat and cationic dyes
Assignee: EIDP Inc
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Filing: 1959-01-20
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Granted: 1963-04-16
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Expires: 1979-01-20
Abstract
No abstract record available.
Inventors
- 👤 Jr Everett H Hinton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:06
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/82; D06P3/8204; D06P3/8266; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/927
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A DYE BATH SUITABLE FOR DYEING TEXYILES COMPOSED OF ACRYLONITRILE POLYMER AND CELLULOSIC FIBERS, WHICH COMPRISES A STABLE AQUEOUS DISPERSION OF A VAT DYE, A CATIONIC DYE, A NON-IONIC DISPERSING AGEN, AN ANIONIC DISPERSING AGENT AND AN ORANIC LIQUID SWELLING AGENT FOR THE ACRYLONITRILE POLYMER FIBERS, THE SAID DYE BATH HAVING A PH BETWEEN ABOUT 4.5 AND 5.0.
Claim 2
Dependent Claim
58 words
A DYE BATH SUITABLE FOR DYEING TEXYILES COMPOSED OF ACRYLONITRILE POLYMER AND CELLULOSIC FIBERS, WHICH COMPRISES A STABLE AQUEOUS DISPERSION OF A VAT DYE, A CATIONIC DYE, A NON-IONIC DISPERSING AGEN, AN ANIONIC DISPERSING AGENT AND AN ORANIC LIQUID SWELLING AGENT FOR THE ACRYLONITRILE POLYMER FIBERS, THE SAID DYE BATH HAVING A PH BETWEEN ABOUT 4.5 AND 5.0.
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) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |