Patent US3776873A successfully refreshed from Google Patents.
Patent US3364026A successfully refreshed from Google Patents.
US3364026A
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Fogged silver halide direct positive solarizing elements containing merocyanine dyes
Assignee: Eastman Kodak Co
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Filing: 1963-02-14
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Granted: 1968-01-16
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Expires: 1983-02-14
Abstract
No abstract record available.
Inventors
- 👤 William W Rees
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:44
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/10; G03C1/12; G03C1/22; G03C1/485; G03C1/48515; G03C1/48523; G03C1/4853
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A PROCESS FOR MAKING A COARSE-GRAINED SILVER HALIDE EMULSION COMPOSITION FOR COATING A DIRECT POSITIVE SOLARIZING PHOTOGRAPHIC MATERIAL FOR MAKING DUPLICATES OF RADIOGRAPHS, SAID PROCESS COMPRISING THE STEP: (1) ADDING TO A FOGGED COARSE-GRAINED SILVER HALIDE EMULSION A MEROCYANINE DYE SELECTED FROM THOSE HAVING THE FORMULA:
Claim 2
Dependent Claim
46 words
A PROCESS FOR MAKING A COARSE-GRAINED SILVER HALIDE EMULSION COMPOSITION FOR COATING A DIRECT POSITIVE SOLARIZING PHOTOGRAPHIC MATERIAL FOR MAKING DUPLICATES OF RADIOGRAPHS, SAID PROCESS COMPRISING THE STEP: (1) ADDING TO A FOGGED COARSE-GRAINED SILVER HALIDE EMULSION A MEROCYANINE DYE SELECTED FROM THOSE HAVING THE FORMULA:
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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) | 1971-01-15 | 1971-07-17 | 1972-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-15 | 1975-07-17 | 1976-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-15 | 1979-07-17 | 1980-01-16 | $7700.00 | Window Closed / Lapsed |