US2533182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of colored metallo-alpha-oximino ketone complex images
Assignee: GAF Chemicals Corp
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Filing: 1949-07-08
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Granted: 1950-12-05
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Expires: 1969-07-08
Abstract
No abstract record available.
Inventors
- 👤 Donald E Sargent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:30
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/26; G03C5/40; G03C7/00; G03C7/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
THE PROCESS OF DEPOSITING A METALLO-A-OXIMINO-KETONE COMPLEX IMAGE IN SITU WITH A SILVER HALIDE IMAGE CONTAINED IN A PHOTOGRAPHIC ELEMENT WHICH COMPRISES TREATING A SILVER HALIDE IMAGE IN SUCH ELEMENT WITH AN AQUEOUS ALKALINE SOLUTION OF A COMPLEX METAL COMPOUND CONTAINING A THIOAMIDE GROUP CAPABLE OF ISOMERIZING TO AN ISOTHIOAMIDE GROUP AND CAPABLE OF FORMING SILVER SALTS LESS SOLUBLE THAN SILVER HALIDES, SAID COMPLEX METAL COMPOUND BEING OBTAINED BY NITROSATING A COMPOUND CONTAINING A THIOAMIDE GROUP CAPABLE OF ISOMERIZING TO AN ISOTHIOAMIDE GROUP AND YIELDING A-OXIMINO-KETONE STRUCTURES UPON NITROSATION, AND HAVING A STRUCTURE SELECTED FROM THE CLASS CONSISTING OF A-KETO METHYLENE AND 1- AND 2-HYDROXY NAPHTHALENE STRUCTURES AND REACTING THE RESULTING NITROSATED COMPOUND WITH A SOLUBLE METAL SALT SELECTED FROM THE CLASS CONSISTING OF SOLUBLE FERROUS AND COBALTOUS SALTS.
Claim 2
Dependent Claim
129 words
THE PROCESS OF DEPOSITING A METALLO-A-OXIMINO-KETONE COMPLEX IMAGE IN SITU WITH A SILVER HALIDE IMAGE CONTAINED IN A PHOTOGRAPHIC ELEMENT WHICH COMPRISES TREATING A SILVER HALIDE IMAGE IN SUCH ELEMENT WITH AN AQUEOUS ALKALINE SOLUTION OF A COMPLEX METAL COMPOUND CONTAINING A THIOAMIDE GROUP CAPABLE OF ISOMERIZING TO AN ISOTHIOAMIDE GROUP AND CAPABLE OF FORMING SILVER SALTS LESS SOLUBLE THAN SILVER HALIDES, SAID COMPLEX METAL COMPOUND BEING OBTAINED BY NITROSATING A COMPOUND CONTAINING A THIOAMIDE GROUP CAPABLE OF ISOMERIZING TO AN ISOTHIOAMIDE GROUP AND YIELDING A-OXIMINO-KETONE STRUCTURES UPON NITROSATION, AND HAVING A STRUCTURE SELECTED FROM THE CLASS CONSISTING OF A-KETO METHYLENE AND 1- AND 2-HYDROXY NAPHTHALENE STRUCTURES AND REACTING THE RESULTING NITROSATED COMPOUND WITH A SOLUBLE METAL SALT SELECTED FROM THE CLASS CONSISTING OF SOLUBLE FERROUS AND COBALTOUS SALTS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-04 | 1954-06-05 | 1954-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-04 | 1958-06-05 | 1958-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-04 | 1962-06-05 | 1962-12-05 | $7700.00 | Window Closed / Lapsed |