US3745015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spectral sensitization of photodevelopable silver halide emulsions
Assignee: Agfa Gevaert NV
•
Filing: 1971-07-08
•
Granted: 1973-07-10
•
Expires: 1991-07-08
Abstract
Abstract A PHOTODEVELOPABLE DIRECT-PRINT RADIATION SENSITIVE SILVER HALIDE EMULSION IS DESCRIBED WHICH CMPRISES AN IODINE COMPOUND, A CADMIUM COMPOUND AND AN IMIDACARBOCYANINE SPECTRALLY SENSITIZING DYE IN WHICH AT LEAST ONE OF THE BENZORINGS CARRIERS ONE OR MORE SUBSTITUENTS CHARACTERIZED BY A HAMMET CONSTANT $P OF AT LEAST 0.25, NITRO BEING EXCLUDED. WITH THESE SPECTRALLY SENSITIZED EMULSIONS DIRECTPRINT IMAGE RECORDS HAVING A FAVOURABLE IMAGE-DISCRIMINATION AND A LOW MINIMUM DENSITY CAN BE OBTAINED.
Inventors
- 👤 Pee P Van
- 👤 H Depoorter
- 👤 T Ghys
- 👤 J Berendsen
- 👤 W Vanassche
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:21
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/10; G03C1/12; G03C1/14; G03C1/18; C; C09; C09B; C09B23/00; C09B23/02; C09B23/06; C09B23/10; C09B23/105; G03C1/49
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |