Patent US2944896A successfully refreshed from Google Patents.
US2944896A
Expired / Lapsed
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Process for sensitizing silver halide emulsions
Assignee: Agfa Gevaert NV
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Filing: 1956-05-16
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Granted: 1960-07-12
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Expires: 1976-05-16
Abstract
No abstract record available.
Inventors
- 👤 Riester Oskar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:47
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/10; G03C1/12; G03C1/22; C; C09; C09B; C09B23/00; C09B23/10; C09B23/102; G03C1/494
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
AN OPTICALLY SENSITIZED SILVER HALIDE EMULSION LAYER IN WHICH AT LEAST 98% OF THE SILVER HALIDE IS SILVER CHLORIDE, SAID EMULSION CONTAINING AS ESSENTIALLY THE ONLY OPTICAL SENSITIZER A NEUTROCYANINE OF ONE OF THE FORMULAE SELECTED FROM THE GROUP CONSISTING OF
Claim 2
Dependent Claim
41 words
AN OPTICALLY SENSITIZED SILVER HALIDE EMULSION LAYER IN WHICH AT LEAST 98% OF THE SILVER HALIDE IS SILVER CHLORIDE, SAID EMULSION CONTAINING AS ESSENTIALLY THE ONLY OPTICAL SENSITIZER A NEUTROCYANINE OF ONE OF THE FORMULAE SELECTED FROM THE GROUP CONSISTING OF
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) | 1963-07-12 | 1964-01-11 | 1964-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-12 | 1968-01-11 | 1968-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-12 | 1972-01-11 | 1972-07-12 | $7700.00 | Window Closed / Lapsed |