US3737313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper radiographic element containing silver halide grains rhodium salt sensitized,thioether ripened and polyvalent metal ion stabilized
Assignee: Eastman Kodak Co
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Filing: 1971-06-17
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Granted: 1973-06-05
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Expires: 1991-06-17
Abstract
Abstract DISCLOSED ARE IMPROVED RADIATION-SENSITIVE IMAGE RECORDING ELEMENTS PARTICULARLY USEFUL IN NON-DESTRUCTIVE TESTING WHICH ELEMENTS COMPRISE A SUPPORT CARRYING A THIOETHER RIPENED, POLYVALENT METAL ION STABILIZED RADIATIONSENSITIVE SILVER HALIDE LAYER OF LOW COATING DENSITY DISPERSED IN A HYDROPHILIC COLLOID LAYER OF SUBSTANTIALLY HIGHER COATING DENSITY. THE SILVER HALIDE GRAINS ARE COARSE GRAINED AND THE ELEMENTS CAN OPTIONALLY CONTAIN INCORPORATED DEVELOPER AGENTS AND CAN OPTIONALLY BE COMBINED WITH INTEGRAL OR NON-INTEGRAL LUMINESCENT PHOSPHOR-CONTAINING INTENSIFYING SCREENS. PROCESS FOR NON-DESTRUCTIVE TESTING AND IMAGE RECORDING ARE LIKEWISE DISCLOSED.
Inventors
- 👤 W Rosecrants
- 👤 F Pomeroy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:15
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/42; G03C1/08; G03C1/09; G03C1/34; G03C5/00; G03C5/16
Claims Analysis
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References Cited (Backward Citations)
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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) | 1976-06-04 | 1976-12-04 | 1977-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-04 | 1980-12-04 | 1981-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-04 | 1984-12-04 | 1985-06-05 | $7700.00 | Window Closed / Lapsed |