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Patent US2959461A successfully refreshed from Google Patents.
US2959461A
Expired / Lapsed
US
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Fugitive tints for natural and synthetic fibers
Assignee: Individual
•
Filing: 1956-09-18
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Granted: 1960-11-08
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Expires: 1976-09-18
Abstract
No abstract record available.
Inventors
- 👤 Edward A Murray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:31
CPC Classifications
D; D06; D06P; D06P5/00; D06P5/13; D06P5/138
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
AS A FUGITIVE TINT FOR TEXTILE FIBERS, THE PRODUCT OF THE ADMIXTURE IN THE PRESENCE OF WATER OF (1) A WATER SOLUBLE AROMATIC DYSTUFF HAVING CHROMOPHORIC AND AUXOCHROMIC SUBSTITUENTS AND INCLUDING A HETEROCYCLIC RING OF FROM 5 TO 6 MEMBERS, ONE OF SAID MEMBERS BEING A METAL ATOM UNITED IN THE RING BY A NORMAL COVALENT BOND ON ONE SIDE AND A COORDINATE BOND ON THE OTHER, WHICH DYESTUFF NORMALLY STAINS THE TEXTILE FIBER TO BE TINTED, AND (2) AT LEAST 50% BY WEIGHT OF SAID COMPOUND OF A POLYN-VINYL LACTAM.
Claim 2
Dependent Claim
91 words
AS A FUGITIVE TINT FOR TEXTILE FIBERS, THE PRODUCT OF THE ADMIXTURE IN THE PRESENCE OF WATER OF (1) A WATER SOLUBLE AROMATIC DYSTUFF HAVING CHROMOPHORIC AND AUXOCHROMIC SUBSTITUENTS AND INCLUDING A HETEROCYCLIC RING OF FROM 5 TO 6 MEMBERS, ONE OF SAID MEMBERS BEING A METAL ATOM UNITED IN THE RING BY A NORMAL COVALENT BOND ON ONE SIDE AND A COORDINATE BOND ON THE OTHER, WHICH DYESTUFF NORMALLY STAINS THE TEXTILE FIBER TO BE TINTED, AND (2) AT LEAST 50% BY WEIGHT OF SAID COMPOUND OF A POLYN-VINYL LACTAM.
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) | 1963-11-08 | 1964-05-09 | 1964-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-08 | 1968-05-09 | 1968-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-08 | 1972-05-09 | 1972-11-08 | $7700.00 | Window Closed / Lapsed |