Patent US3135576A successfully refreshed from Google Patents.
US3135576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disperse dyeing of cellulose triacetate
Assignee: Celanese Corp
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Filing: 1960-10-17
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Granted: 1964-06-02
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Expires: 1980-10-17
Abstract
No abstract record available.
Inventors
- 👤 Colin L Browne
- 👤 William J Myles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:15
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/58; D06P3/60; D06P3/62; D06P1/00; D06P1/44; D06P1/64; D06P1/651; D06P1/65106; D06P3/34; D06P3/40; D06P3/46; D06P3/48; D06P3/82; D06P3/8204; D06P3/8223; D06P3/8238; D06P3/8242; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/917; Y10S8/918; Y10S8/92; Y10S8/927; Y10S8/93
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
THE PROCESS OF DYEING TEXTILE MATERIAL COMPRISING CELLULOSE TRIACETATE WHICH COMPRISES CONTACTING SAID MATERIAL AT AN ELEVATED TEMPERATURE WITH AN AQUEOUS DYEBATH CONTAINING A DISPERSE ACETATE DYE AND AN ACETIC ACID ESTER SELECTED FROM THE GROUP CONSISTING OF ACETYLE TRIETHYL CITRATE AND B-BUTOXYLETHYL ACETATE PRESENT IN ABOUT 3 TO 25% OF THE WEIGHT OF THE TEXTILE MATERIAL.
Claim 2
Dependent Claim
57 words
THE PROCESS OF DYEING TEXTILE MATERIAL COMPRISING CELLULOSE TRIACETATE WHICH COMPRISES CONTACTING SAID MATERIAL AT AN ELEVATED TEMPERATURE WITH AN AQUEOUS DYEBATH CONTAINING A DISPERSE ACETATE DYE AND AN ACETIC ACID ESTER SELECTED FROM THE GROUP CONSISTING OF ACETYLE TRIETHYL CITRATE AND B-BUTOXYLETHYL ACETATE PRESENT IN ABOUT 3 TO 25% OF THE WEIGHT OF THE TEXTILE MATERIAL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |