US2537097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dyeing of textile materials by the use of light-sensitive diazo salts
Assignee: GAF Chemicals Corp
•
Filing: 1945-08-18
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Granted: 1951-01-09
•
Expires: 1965-08-18
Abstract
No abstract record available.
Inventors
- 👤 Slifkin Sam Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:15
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/7642; D; D06; D06P; D06P1/00; D06P1/02; D06P1/12; D06P5/00; D06P5/001
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A LIGHT SENSITIVE ELEMENT COMPRISING A TEXTILE FABRIC IMPREGNATED WITH A LIGHT SENSITIVE DIAZO COMPOUND DECOMPOSABLE BY LIGHT TO FORM A NONCOUPLING COMPOUND, AN ORGANIC COMPOUND COUPLING IN ALKALINE MEDIUM, A PRECOUPLING STABILIZER, AND ZINC CHLORIDE THE LATTER BEING IN AMOUNTS OF FROM 5 TO ABOUT 10% EXCLUSIVE OF ANY REQUIRED TO FORM A COMPLEX SALT WITH THE DIAZONIUM COMPOUND.
Claim 2
Dependent Claim
60 words
A LIGHT SENSITIVE ELEMENT COMPRISING A TEXTILE FABRIC IMPREGNATED WITH A LIGHT SENSITIVE DIAZO COMPOUND DECOMPOSABLE BY LIGHT TO FORM A NONCOUPLING COMPOUND, AN ORGANIC COMPOUND COUPLING IN ALKALINE MEDIUM, A PRECOUPLING STABILIZER, AND ZINC CHLORIDE THE LATTER BEING IN AMOUNTS OF FROM 5 TO ABOUT 10% EXCLUSIVE OF ANY REQUIRED TO FORM A COMPLEX SALT WITH THE DIAZONIUM COMPOUND.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-08 | 1954-07-10 | 1955-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-08 | 1958-07-10 | 1959-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-08 | 1962-07-10 | 1963-01-09 | $7700.00 | Window Closed / Lapsed |