Patent US3243298A successfully refreshed from Google Patents.
US3243298A
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Methine dyes
Assignee: Gevaert Photo Producten NV
•
Filing: 1962-05-28
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Granted: 1966-03-29
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Expires: 1982-05-28
Abstract
No abstract record available.
Inventors
- 👤 Libeer Marcel Jan
- 👤 Depoorter Henri
- 👤 Gerrit Godfried Van Mierlo
- 👤 Lemahieu Raymond Gerard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:20
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/06; C07D295/073; C07D471/00; C07D471/02; C07D471/04; C07D487/00; C07D487/02; C07D487/04; C09; C09B; C09B23/00; G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/10; G03C1/12; G03C1/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
19 words
PHOTOGRAPHIC SILVER HALIDE EMULSION CONTAINING A METHINE DYE SALT REPRESENTED BY A FORMULA SELECTED FROM THE GROUP CONSISTING OF:
Claim 2
Dependent Claim
19 words
PHOTOGRAPHIC SILVER HALIDE EMULSION CONTAINING A METHINE DYE SALT REPRESENTED BY A FORMULA SELECTED FROM THE GROUP CONSISTING OF:
References Cited (Backward Citations)
US2304981A
Cited
GB615205A
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US2622082A
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US2706193A
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US2870014A
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US2895955A
Cited
US2953561A
Cited
US2954376A
Cited
US2984664A
Cited
US3073699A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |