Patent US3234023A successfully refreshed from Google Patents.
US3234023A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Colored photographic masks
Assignee: Gevaert Photo Producten NV
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Filing: 1960-01-14
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Granted: 1966-02-08
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Expires: 1980-01-14
Abstract
No abstract record available.
Inventors
- 👤 Ramaix Maurice Antoine De
- 👤 Danckaert Valere Frans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:24
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A LIGHT-SENSITIVE COLOR PHOTOGRAPHIC MATERIAL FOR MASKING PURPOSES CONSISTING ESSENTIALLY OF ON A TRANSPARENT SUPPORT, AN ANTHIHALATION LAYER, A SILVER HALIDE EMULSION LAYER OPTICALLY SENSITIZED TO GREEN LIGHT AND CONTAINING A COLOR COUPLER FOR YELLOW, BLUE-SENSITIVE SILVER HALIDE EMULSION LAYER OPTICALLY SENSITIZED TO GREEN LIGHT AND CONTAINING A COLOR COUPLER FOR CYAN, A BLUESENSITIVE SILVER HALIDE EMULSION LAYER OPTICALLY SENSITIZED TO RED LIGHT AND CONTAINING A COLOR COUPLER FOR MAGENTA, AND A FILTER LAYER FOR BLUE LIGHT, SAID FILTER LAYER BEING INTERPOSED BETWEEN THE SILVER HALIDE EMULSION LAYER CONTAINING THE COLOR COUPLER FOR YELLOW AND THE SILVER HALIDE EMULSION LAYERS RESPECTIVELY CONTAINING THE COLOR COUPLER FOR CYAN AND THE COLOR COUPLER FOR MAGENTA TO PREVENT THE PASSAGE OF BLUE LIGH TO THE LAYER CONTAINING THE COLOR COUPLER FOR YELLOW.
Claim 2
Dependent Claim
129 words
A LIGHT-SENSITIVE COLOR PHOTOGRAPHIC MATERIAL FOR MASKING PURPOSES CONSISTING ESSENTIALLY OF ON A TRANSPARENT SUPPORT, AN ANTHIHALATION LAYER, A SILVER HALIDE EMULSION LAYER OPTICALLY SENSITIZED TO GREEN LIGHT AND CONTAINING A COLOR COUPLER FOR YELLOW, BLUE-SENSITIVE SILVER HALIDE EMULSION LAYER OPTICALLY SENSITIZED TO GREEN LIGHT AND CONTAINING A COLOR COUPLER FOR CYAN, A BLUESENSITIVE SILVER HALIDE EMULSION LAYER OPTICALLY SENSITIZED TO RED LIGHT AND CONTAINING A COLOR COUPLER FOR MAGENTA, AND A FILTER LAYER FOR BLUE LIGHT, SAID FILTER LAYER BEING INTERPOSED BETWEEN THE SILVER HALIDE EMULSION LAYER CONTAINING THE COLOR COUPLER FOR YELLOW AND THE SILVER HALIDE EMULSION LAYERS RESPECTIVELY CONTAINING THE COLOR COUPLER FOR CYAN AND THE COLOR COUPLER FOR MAGENTA TO PREVENT THE PASSAGE OF BLUE LIGH TO THE LAYER CONTAINING THE COLOR COUPLER FOR YELLOW.
References Cited (Backward Citations)
GB501190A
Cited
US2376132A
Cited
US2367551A
Cited
US2382690A
Cited
US2647833A
Cited
US2628901A
Cited
GB811311A
Cited
BE566156A
Cited
BE563174A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |