US3576636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light-sensitive silver halide direct-positive photographic emulsion
Assignee: Konica Minolta Inc
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Filing: 1968-12-16
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Granted: 1971-04-27
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Expires: 1988-12-16
Abstract
Abstract THE EMULSION CONTAINS A SENSITIZING DYE, AT LEAST ONE COUPLER SELECTED FROM THE GROUP CONSISTING OF MAGENTA, YELLOW AND CYAN COUPLERS, AND A RHODIUM COMPOUND. FOGGING IS INHIBITED SENSITIVITY TO LIGHT OF LONG WAVELENGTH IS INCREASED AND REVERSAL SPEED IS INCREASED. ADDITIONALLY WHITE BACKGROUND DYE STAINING IS SUPPRESSED.
Inventors
- 👤 Kazuo Matsui
- 👤 Hajime Komatsu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:19
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/485; G03C1/48515; G03C1/48523; G03C1/4853
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) | 1974-04-26 | 1974-10-26 | 1975-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-26 | 1978-10-26 | 1979-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-26 | 1982-10-26 | 1983-04-27 | $7700.00 | Window Closed / Lapsed |