Patent US3304182A successfully refreshed from Google Patents.
US3304182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light-sensitive color photographic layers
Assignee: BASF Schweiz AG
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Filing: 1963-06-11
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Granted: 1967-02-14
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Expires: 1983-06-11
Abstract
No abstract record available.
Inventors
- 👤 Froehlich Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:05
CPC Classifications
C; C07; C07D; C07D215/00; C07D215/02; C07D215/16; C07D215/20; C07D215/12; C07D215/14; C07D215/18; C07D215/38; C07D215/48; C07D215/50; C07D215/52; C07D221/00; C07D221/02; C07D221/04; C07D221/06; C07D221/10; G; G03; G03C; G03C7/00; G03C7/30; G03C7/32; G03C7/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A SILVER HALIDE LIGHT-SENSITIVE PHOTOGRAPHIC LAYER FOR USE IN THE COLOR COUPLING DEVELOPMENT PROCESS, CONTAINING AS THE COLOR FORMER FOR THE MAGNETA DYE A QUINOLINE WHICH CONTAINS A CYANACETYL GROUP IN 4-POSITION OF THE QUINOLINE RADICAL AND IN AT LEAST ON EOF THE 2- AND 3-POSITIONS A SUBSTITUENT SELECTED FROM THE GROUP CONSISTING OF A CYANACETYL RADICAL, A HYDROCARBON RADICAL WITH AT LEAST 3 CARBON ATOMS, AN ACYLAMINOBENZENE RADICAL THE ACYL GROUP OF WHICH CONTAINS AT LEAST 3 CARBON ATOMS AND AN ALKOXYBENZENE GROUP THE ALKYL GROUP OF WHICH CONTAINS AT LEAST 3 CARBON ATOMS.
Claim 2
Dependent Claim
95 words
A SILVER HALIDE LIGHT-SENSITIVE PHOTOGRAPHIC LAYER FOR USE IN THE COLOR COUPLING DEVELOPMENT PROCESS, CONTAINING AS THE COLOR FORMER FOR THE MAGNETA DYE A QUINOLINE WHICH CONTAINS A CYANACETYL GROUP IN 4-POSITION OF THE QUINOLINE RADICAL AND IN AT LEAST ON EOF THE 2- AND 3-POSITIONS A SUBSTITUENT SELECTED FROM THE GROUP CONSISTING OF A CYANACETYL RADICAL, A HYDROCARBON RADICAL WITH AT LEAST 3 CARBON ATOMS, AN ACYLAMINOBENZENE RADICAL THE ACYL GROUP OF WHICH CONTAINS AT LEAST 3 CARBON ATOMS AND AN ALKOXYBENZENE GROUP THE ALKYL GROUP OF WHICH CONTAINS AT LEAST 3 CARBON ATOMS.
References Cited (Backward Citations)
US2680730A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |