US3128222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of coloring cellulosic fibers
Assignee: Fort James Corp
•
Filing: 1960-11-07
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Granted: 1964-04-07
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Expires: 1980-11-07
Abstract
No abstract record available.
Inventors
- 👤 Robert J Herschler
- 👤 Rainer G Jaffe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:42
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/03; D21H17/05; D21H17/09; D21H21/00; D21H21/14; D21H21/28; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A PROCESS FOR COLORING CELLUOSIC FIBERS WHICH COMPRISES ADDING TO AN AQUEOUS SLURRY OF SAID FIBERS (A) A LIQUID DISPERSION COMPRISING 10 TO 99 PARTS BY WEIGHT OF A DIALKYL SULFOXIDE AND 1 TO 90 PARTS BY WEIGHT OF A WATERINSOLUBLE COLORANT AND (B) A SUFFICIENT AMOUNT OF A CATIONIC AGENT TO EFFECT A SUBSTANTIALLY COMPLETE DEPOSITION OF THE COLORANT ON THE FIBERS.
Claim 2
Dependent Claim
63 words
A PROCESS FOR COLORING CELLUOSIC FIBERS WHICH COMPRISES ADDING TO AN AQUEOUS SLURRY OF SAID FIBERS (A) A LIQUID DISPERSION COMPRISING 10 TO 99 PARTS BY WEIGHT OF A DIALKYL SULFOXIDE AND 1 TO 90 PARTS BY WEIGHT OF A WATERINSOLUBLE COLORANT AND (B) A SUFFICIENT AMOUNT OF A CATIONIC AGENT TO EFFECT A SUBSTANTIALLY COMPLETE DEPOSITION OF THE COLORANT ON THE FIBERS.
References Cited (Backward Citations)
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Cited
US2658038A
Cited
US2730446A
Cited
US2741531A
Cited
US2806829A
Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-07 | 1967-10-07 | 1968-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-07 | 1971-10-07 | 1972-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-07 | 1975-10-07 | 1976-04-07 | $7700.00 | Window Closed / Lapsed |