Patent US3700456A successfully refreshed from Google Patents.
US3700456A
Expired / Lapsed
US
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Synthetic polymeric photographic emulsion vehicles
Assignee: Eastman Kodak Co
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Filing: 1970-10-22
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Granted: 1972-10-24
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Expires: 1990-10-22
Abstract
Abstract PHOTOGRAPHIC SILVER HALIDE EMULSIONS HAVING A VEHICLE OR BINDING AGENT COMPRISING A FILM-FORMING ADDITION POLYMER PREPARED BY POLYMERIZATION OF THE MONOMER OR MONOMERS IN THE PRESENCE OF A REDOX CATALYST SYSTEM WHICH CONTAINS BROMATE OR CHLORATE ION AS THE OXIDANT. RESIDUAL BROMATE OR CHLORATE ION IN THE FINISHED POLYMER DOES NOT ADVERSELY AFFECT THE PHOTOGRAPHIC EMULSION.
Inventors
- 👤 Donald A Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:20
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/04; G03C1/053
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |