Patent US4284208A successfully refreshed from Google Patents.
Patent US2947628A successfully refreshed from Google Patents.
US2947628A
Expired / Lapsed
US
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Multilayer print film having incorporated coloring material
Assignee: Eastman Kodak Co
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Filing: 1956-10-12
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Granted: 1960-08-02
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Expires: 1976-10-12
Abstract
No abstract record available.
Inventors
- 👤 Scheuring S Fierke
- 👤 Homer W J Cressman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:34
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/10; G03C1/102; G03C1/76; G03C1/825; G03C7/00; G03C7/30; G03C7/3022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A MULTILAYER PHOTOGRAPHIC ELEMENT COMPRISING A SUPPORT HAVING ON ONE SIDE THEREOF THREE SILVER HALIDE EMULSION LAYERS SEPARATELY SENSITIVE TO THE BLUE, GREEN AND RED SEPECTRAL REGIONS, AND EACH CONTAINING NON-DIFFUSING COLOR-FORMING COMPOUNDS CAPABLE OF COUPLING WITH THE OXIDATION PRODUCT OF A PRIMARY AROMATIC AMINO SILVER HALIDE DEVELOPING AGENT TO FORM DYES, AND IN AT LEAST ONE LAYER ON SAID SIDE OF THE SUPPORT AN INTERNAL LATENT IMAGE SILVER HALIDE EMULSION, THE SILVER HALIDE GRAINS OF WHICH ARE SUCH AS TO CAUSE A TEST PORTION OF SAID LATTER EMULSION UPON EXPOSURE TO A LIGHT INTENSITY SCALE FOR A FIXED TIME BETWEEN 1/100 AND 1 SECOND AND DEVELOPMENT FOR 3 MINUTES AT 20*C. IN THE FOLLOWING INTERNAL TYPE DEVELOPER:
Claim 2
Dependent Claim
118 words
A MULTILAYER PHOTOGRAPHIC ELEMENT COMPRISING A SUPPORT HAVING ON ONE SIDE THEREOF THREE SILVER HALIDE EMULSION LAYERS SEPARATELY SENSITIVE TO THE BLUE, GREEN AND RED SEPECTRAL REGIONS, AND EACH CONTAINING NON-DIFFUSING COLOR-FORMING COMPOUNDS CAPABLE OF COUPLING WITH THE OXIDATION PRODUCT OF A PRIMARY AROMATIC AMINO SILVER HALIDE DEVELOPING AGENT TO FORM DYES, AND IN AT LEAST ONE LAYER ON SAID SIDE OF THE SUPPORT AN INTERNAL LATENT IMAGE SILVER HALIDE EMULSION, THE SILVER HALIDE GRAINS OF WHICH ARE SUCH AS TO CAUSE A TEST PORTION OF SAID LATTER EMULSION UPON EXPOSURE TO A LIGHT INTENSITY SCALE FOR A FIXED TIME BETWEEN 1/100 AND 1 SECOND AND DEVELOPMENT FOR 3 MINUTES AT 20*C. IN THE FOLLOWING INTERNAL TYPE DEVELOPER:
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) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |