US2749206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for dyeing or printing cellu-
Assignee: —
•
Filing: —
•
Granted: 1956-06-05
•
Expires: 1973-06-05
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:12
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/58; D06P3/60; D06P3/66; C; C09; C09B; C09B45/00; C09B45/02; C09B45/24; C09B45/28; D06P1/00; D06P1/38; D06P1/44; D06P1/673; D06P1/67333; D06P1/6735
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
PROCESS FOR COLORING TEXTILE MATERIALS CONTAINING CELLULOSIC FIBERS WITH METALLIFEROUS DIRECT DYESTUFFS, WHICH COMPRISES APPLYING TO SAID MATERIALS A NEUTRAL TO ALKALINE AQUEOUS DYESTUFF COMPOSITION WHICH CONTAINS A DIRECT DYESTUFF IN WHICH A METAL HAVING AN ATOMIC NUMBER FROM 27 TO 29 IS BOUND IN COMPLEX UNION TO AT LEAST ONE ORTHOHYDROXY-ORTHO'' -CARBOXY-AZO-GROUPING, A WATER-SOLUBLE ALIPHATIC A-AMINO-CARBOXYLIC ACID, AND AN ALKALI METAL SALT OF A PHOSPHORIC ACID OF THE CONSTITUTION
Claim 2
Dependent Claim
70 words
PROCESS FOR COLORING TEXTILE MATERIALS CONTAINING CELLULOSIC FIBERS WITH METALLIFEROUS DIRECT DYESTUFFS, WHICH COMPRISES APPLYING TO SAID MATERIALS A NEUTRAL TO ALKALINE AQUEOUS DYESTUFF COMPOSITION WHICH CONTAINS A DIRECT DYESTUFF IN WHICH A METAL HAVING AN ATOMIC NUMBER FROM 27 TO 29 IS BOUND IN COMPLEX UNION TO AT LEAST ONE ORTHOHYDROXY-ORTHO'' -CARBOXY-AZO-GROUPING, A WATER-SOLUBLE ALIPHATIC A-AMINO-CARBOXYLIC ACID, AND AN ALKALI METAL SALT OF A PHOSPHORIC ACID OF THE CONSTITUTION
References Cited (Backward Citations)
FR763510A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-05 | 1959-12-05 | 1960-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-05 | 1963-12-05 | 1964-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-05 | 1967-12-05 | 1968-06-05 | $7700.00 | Window Closed / Lapsed |