US2706683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bis-pyrazolone for color photography
Assignee: Eastman Kodak Co
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Filing: 1951-12-15
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Granted: 1955-04-19
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Expires: 1971-12-15
Abstract
No abstract record available.
Inventors
- 👤 George W Sawdey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:20
CPC Classifications
C; C07; C07D; C07D417/00; C07D417/14; C07D231/00; C07D231/02; C07D231/10; C07D231/14; C07D231/44; C07D231/52; G; G03; G03C; G03C7/00; G03C7/30; G03C7/32; G03C7/36; G03C7/38; G03C7/384
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A PHOTOGRAPHIC SILVER HALIDE EMULSION CONTAINING AS A COUPLER COMPOUND A MEMBER OF THE CALSS CONSISTING OF A(4(1(2'',4'',6'', TRICHLOROPHENYL)-3(3"(2"'',4"''-DI-T.AMYLPHENOXYACETAMIDO)BENZAMIDO) - 5 - PYRAZOLONYL))1PHENYL - 3 - METHYL - 4 - (P -METHOXYBENZYL) - 5 -PYRAZOLONE, A(4((1'' - BENZOTHIAZOLYL) - 3''((3" TERT.AMYLPHENOXY) - BENZAMIDO) - 5 - PYRAZOLONYL))1 - PHENYL - 3 AMION - 4(P - METHOXYBENZYL) - 5 - PYRAZOLONE, (1 PHENYL - 3 -A-PHENYLBUTYRAMIDO - 5 - PYRAZOLONE, (1(4 "-TERT. PHENYLPHENOXY)PHENYL - 3 - (4"''(4"''-TERT.BUTYLPHENOXY)PHENYL)CARBAMYL - 5 - PYRAZOLONE AND (1(2''BENZOTHIAZOLYL) - 3 - 8 - (4''(3" - P-TERT.AMYLPHENOXY)BENZAMIDOPHENYLVALERAMIDO) - 5 - PRYAZOLONYL) - 1PHENYL - 3 - A - PHENYLBUTYRYLAMINO - 4 - P - METHOXYBENZAL-5-PYRAZOLONE.
Claim 2
Dependent Claim
108 words
A PHOTOGRAPHIC SILVER HALIDE EMULSION CONTAINING AS A COUPLER COMPOUND A MEMBER OF THE CALSS CONSISTING OF A(4(1(2'',4'',6'', TRICHLOROPHENYL)-3(3"(2"'',4"''-DI-T.AMYLPHENOXYACETAMIDO)BENZAMIDO) - 5 - PYRAZOLONYL))1PHENYL - 3 - METHYL - 4 - (P -METHOXYBENZYL) - 5 -PYRAZOLONE, A(4((1'' - BENZOTHIAZOLYL) - 3''((3" TERT.AMYLPHENOXY) - BENZAMIDO) - 5 - PYRAZOLONYL))1 - PHENYL - 3 AMION - 4(P - METHOXYBENZYL) - 5 - PYRAZOLONE, (1 PHENYL - 3 -A-PHENYLBUTYRAMIDO - 5 - PYRAZOLONE, (1(4 "-TERT. PHENYLPHENOXY)PHENYL - 3 - (4"''(4"''-TERT.BUTYLPHENOXY)PHENYL)CARBAMYL - 5 - PYRAZOLONE AND (1(2''BENZOTHIAZOLYL) - 3 - 8 - (4''(3" - P-TERT.AMYLPHENOXY)BENZAMIDOPHENYLVALERAMIDO) - 5 - PRYAZOLONYL) - 1PHENYL - 3 - A - PHENYLBUTYRYLAMINO - 4 - P - METHOXYBENZAL-5-PYRAZOLONE.
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) | 1958-04-18 | 1958-10-18 | 1959-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-18 | 1962-10-18 | 1963-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-18 | 1966-10-18 | 1967-04-19 | $7700.00 | Window Closed / Lapsed |