US2768053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aftertreatment of dyed fibrous material
Assignee: GAF Chemicals Corp
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Filing: 1952-10-22
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Granted: 1956-10-23
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Expires: 1972-10-22
Abstract
No abstract record available.
Inventors
- 👤 Streck Clemens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:33
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/02; D06P3/04; D06P3/12; D06P3/58; D06P3/60; D06P3/68; D06P5/00; D06P5/02; D06P5/10; Y; Y10; Y10S; Y10S424/00; Y10S424/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A PROCESS COMPRISING AFTERTREATING FIBROUS MATERIAL DYED WITH AN AZOIC DYE DEVOID OF SULUBILIZING GROUPS AND CONTAINING IN O,O''-POSITIONS RELATIVE TO AN AZO LINKAGE GROUPS CAPABLE OF CONVERSION TO A COMPLEX METAL COMPOUND WITH AN ALKALINE COMPOSITION COMPRISING A SOAP AND AT LEAST ONE METALLIZING COMPOUND OF THE GROUP CONSISTING OF THE SALTS AND HYDROXIDES OF COPPER, COBALT AND NICKEL CAPABLE OF FORMING A METAL COMPLEX WITH SAID AZOIC DYE.
Claim 2
Dependent Claim
70 words
A PROCESS COMPRISING AFTERTREATING FIBROUS MATERIAL DYED WITH AN AZOIC DYE DEVOID OF SULUBILIZING GROUPS AND CONTAINING IN O,O''-POSITIONS RELATIVE TO AN AZO LINKAGE GROUPS CAPABLE OF CONVERSION TO A COMPLEX METAL COMPOUND WITH AN ALKALINE COMPOSITION COMPRISING A SOAP AND AT LEAST ONE METALLIZING COMPOUND OF THE GROUP CONSISTING OF THE SALTS AND HYDROXIDES OF COPPER, COBALT AND NICKEL CAPABLE OF FORMING A METAL COMPLEX WITH SAID AZOIC DYE.
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) | 1959-10-23 | 1960-04-23 | 1960-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-23 | 1964-04-23 | 1964-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-23 | 1968-04-23 | 1968-10-23 | $7700.00 | Window Closed / Lapsed |