Patent US2867494A successfully refreshed from Google Patents.
US2867494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of metallizing azoic dyeings
Assignee: GAF Chemicals Corp
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Filing: 1956-08-02
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Granted: 1959-01-06
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Expires: 1976-08-02
Abstract
No abstract record available.
Inventors
- 👤 Streck Clemens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:16
CPC Classifications
C; C09; C09B; C09B45/00; C09B45/01; D; D06; D06P; D06P1/00; D06P1/02; D06P1/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
THE PROCESS OF METALLIZING AZOIC DYEINGS WHICH COMPRISES IMPREGNATING A FIBROUS MATERIAL SELECTED FROM THE CLASS CONSISTING OF COTTON AND REGENERATED CELLULOSE WITH AN ALKALINE SOLUTION OF AN AZOIC COUPLING COMPONENT, A COORDINATING AGENT SELECTED FROM THE CLASS CONSISTING OF ALIPHATIC AMINO- AND HYDROXY-CARBOXYLIC ACIDS, AND A METALLIZING COMPOUND OF THE GROUP CONSISTING OF SOLUBLE AND DISPERSIBLE SALTS OF COPPER, COBALT, AND NICKEL, AND THEN TREATING THE IMPREGNATED FIBER WITH A DIAZO SOLUTION, IN WHICH THE DIAZO IS FREE FROM SOLUBILIZING GROUPS, AND SIMULTANEOUSLY DYEING AND METALLIZING IN SITU BY TREATMENT AT ELEVATED TEMPERATURES WITH AN AQUEOUS MEDIUM HAVING A PH OF NOT MORE THAN 7, THE SAID AZOIC COUPLING COMPONENT AND THE SAID DIAZO YIELDING AN O, O-DIHYDROXY CONFIGURATION IN THE FINAL DYESTUFF.
Claim 2
Dependent Claim
124 words
THE PROCESS OF METALLIZING AZOIC DYEINGS WHICH COMPRISES IMPREGNATING A FIBROUS MATERIAL SELECTED FROM THE CLASS CONSISTING OF COTTON AND REGENERATED CELLULOSE WITH AN ALKALINE SOLUTION OF AN AZOIC COUPLING COMPONENT, A COORDINATING AGENT SELECTED FROM THE CLASS CONSISTING OF ALIPHATIC AMINO- AND HYDROXY-CARBOXYLIC ACIDS, AND A METALLIZING COMPOUND OF THE GROUP CONSISTING OF SOLUBLE AND DISPERSIBLE SALTS OF COPPER, COBALT, AND NICKEL, AND THEN TREATING THE IMPREGNATED FIBER WITH A DIAZO SOLUTION, IN WHICH THE DIAZO IS FREE FROM SOLUBILIZING GROUPS, AND SIMULTANEOUSLY DYEING AND METALLIZING IN SITU BY TREATMENT AT ELEVATED TEMPERATURES WITH AN AQUEOUS MEDIUM HAVING A PH OF NOT MORE THAN 7, THE SAID AZOIC COUPLING COMPONENT AND THE SAID DIAZO YIELDING AN O, O-DIHYDROXY CONFIGURATION IN THE FINAL DYESTUFF.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-05 | 1962-07-07 | 1963-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-05 | 1966-07-07 | 1967-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-05 | 1970-07-07 | 1971-01-06 | $7700.00 | Window Closed / Lapsed |