US3746539A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color photographic light-sensitive materials for color prints showingexcellent color reproduction
Assignee: Fujifilm Holdings Corp
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Filing: 1972-02-09
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Granted: 1973-07-17
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Expires: 1992-02-09
Abstract
Abstract A MULTIPLE LAYER TYPE COLOR PHOTOGRAPHIC SILVER HALIDE LIGHT-SENSITIVE MATERIAL FOR COLOR PRINTS HAVING AT LEAST A BLUE-SENSITIVE PHOTOGRAPHIC EMULSION LAYER IN WHICH THE SPECTRAL SENSITIVITY OF THE BLUE-SENSITIVE SILVER HALIDE EMULSION LAYER IS LIMITED TO THE REGION OF ABOUT 440 TO ABOUT 460 NM., IN WHICH AT LEAST ONE DYE HAVING ITS ABSORPTION MAXIMUM AT A WAVELENGTH REGION SHORTER THAN ABOUT 440 NM. AND/OR IN A REGION OF ABOUT 460 TO ABOUT 520 NM. IS INCORPORATED IN THE BLUE-SENSITIVE PHOTOGRAPHIC EMULSION LAYER OF THE LIGHT-SENSITIVE MATERIAL AND/OR IN A LAYER COATED ON THE BLUE-SENSITIVE PHOTOGRAPHIC EMULSION LAYER.
Inventors
- 👤 H Ohmatsu
- 👤 H Ueda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:51
CPC Classifications
C; C09; C09B; C09B29/00; C09B29/34; C09B29/36; C09B29/3604; C09B29/3647; C09B29/3652; C09B29/366; C09B23/00; C09B23/02; C09B23/04; C09B23/06; G; G03; G03C; G03C1/00; G03C1/76; G03C1/825; G03C1/83
Claims Analysis
Total Claims: 0
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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) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |