Patent US3038802A successfully refreshed from Google Patents.
US3038802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic color element with novel cyan dye
Assignee: Ilford Imaging UK Ltd
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Filing: 1959-03-20
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Granted: 1962-06-12
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Expires: 1979-03-20
Abstract
No abstract record available.
Inventors
- 👤 Kelier Ernst
- 👤 Jung Jean-Pierre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:27
CPC Classifications
C; C09; C09B; C09B31/00; C09B31/02; C09B31/025
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
62 words
A MULTILAYER PHOTOGRAPHIC MATERIAL COMPRISING A LAYER OF GELATINO SILVER HALIDE EMULSION CONTAINING A CYANDYE AND SENSITIVE TO RED LIGHT, A LAYER OF GELATINO SILVER HALIDE EMULSION CONTAINING A YELLOW DYE AND SENSITIVE TO BLUE LIGHT, AND A LAYER OF A GELATINO SILVER HALIDE EMULSION CONTAINING A MAGENTA DYE AND SENSITIVE TO GREEN LIGHT, WHEREIN THE CYAN DYE IS OF THE FORMULA:
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) | 1965-06-11 | 1965-12-11 | 1966-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-11 | 1969-12-11 | 1970-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-11 | 1973-12-11 | 1974-06-12 | $7700.00 | Window Closed / Lapsed |