US2982597A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Textile treating
Assignee: Celanese Corp
•
Filing: 1954-12-02
•
Granted: 1961-05-02
•
Expires: 1974-12-02
Abstract
No abstract record available.
Inventors
- 👤 Victor S Salvin
- 👤 Basil S Sprague
- 👤 Fortess Fred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:11
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/62; D06P1/621; D06P1/622; D06P1/623; D06P1/64; D06P1/642; D06P1/6426; D06P1/645; D06P1/649; D06P1/6495; D06P1/6496; D06P1/651; D06P1/65106; D06P1/65118; D06P1/65125; D06P1/65131; D06P1/6515; D06P1/65162; D06P1/667; D06P3/00; D06P3/34; D06P3/40; D06P3/46; D06P3/48; Y; Y10; Y10S; Y10S8/00; Y10S8/908; Y10S8/912
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
PROCESS FOR THE TREATMENT OF TEXTILE MATERIAL, WHICH COMPRISES DYEING A TEXTILE MATERIAL COMPRISING FIBERS OF CELLULOSE ACETATE HAVING AN ACETYL VALUE OF AT LEAST 59%, CALCULATED AS COMBINED ACETIC ACID, WITH A DISPERSED CELLULOSE ACETATE DYE OF THE "HIGH TEMPERATURE SLOW DYEING TYPE" IN AN ESSENTIALLY AQUEOUS BATH IN THE PRESENCE OF ABOUT 1 TO 20% ON THE WEIGHT OF SAID FIBERS OF A SUBSTANTIVE ASSISTANT FOR INCREASING THE RATE OF DYEING OF SAID TEXTILE MATERIAL, SAID ASSISTANT BEING SUBSTANTIALLY INSOLUBLE IN WATER AND BEING APPLIED FROM WATER IN UP TO ABOUT 10% CONCENTRATION BY WEIGHT.
Claim 2
Dependent Claim
97 words
PROCESS FOR THE TREATMENT OF TEXTILE MATERIAL, WHICH COMPRISES DYEING A TEXTILE MATERIAL COMPRISING FIBERS OF CELLULOSE ACETATE HAVING AN ACETYL VALUE OF AT LEAST 59%, CALCULATED AS COMBINED ACETIC ACID, WITH A DISPERSED CELLULOSE ACETATE DYE OF THE "HIGH TEMPERATURE SLOW DYEING TYPE" IN AN ESSENTIALLY AQUEOUS BATH IN THE PRESENCE OF ABOUT 1 TO 20% ON THE WEIGHT OF SAID FIBERS OF A SUBSTANTIVE ASSISTANT FOR INCREASING THE RATE OF DYEING OF SAID TEXTILE MATERIAL, SAID ASSISTANT BEING SUBSTANTIALLY INSOLUBLE IN WATER AND BEING APPLIED FROM WATER IN UP TO ABOUT 10% CONCENTRATION BY WEIGHT.
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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) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |