Patent US2982597A successfully refreshed from Google Patents.
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
2026-10-26 02:10
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.
References Cited (Backward Citations)
US2274751A
Cited
US2754171A
Cited
US1826608A
Cited
GB313072A
Cited
US2073629A
Cited
US2047230A
Cited
US2080254A
Cited
US2159014A
Cited
US2341009A
Cited
US2182964A
Cited
GB500960A
Cited
US2259515A
Cited
US2297536A
Cited
US2384001A
Cited
US2304435A
Cited
US2517751A
Cited
US2535098A
Cited
US2862785A
Cited
US2785041A
Cited
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 |