US3762924A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic gelatinous coating composition
Assignee: Konica Minolta Inc
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Filing: 1968-01-30
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Granted: 1973-10-02
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Expires: 1988-01-30
Abstract
Abstract IT HAS BEEN FOUND THAT PHOTOGRAPHIC GELATINOUS SILVER HALIDE EMULSIONS CONTAINING DEXTRAN SULFATE OR CARBOXYALKYL DEXTRAN SULFATE HAVE INCREASED COVERING POWER AS WELL AS IMPROVED MAXIMUM DENSITY AND CONTRAST.
Inventors
- 👤 E Morii
- 👤 Y Wakabayashi
- 👤 K Furuya
- 👤 S Sato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:14
CPC Classifications
C; C08; C08B; C08B37/00; C08B37/0006; C08B37/0009; C08B37/0021
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) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |