US3726684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spectrally sensitizing quick-processing photographic material
Assignee: Agfa Gevaert AG
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Filing: 1971-12-08
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Granted: 1973-04-10
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Expires: 1991-12-08
Abstract
Abstract A LIGHT-SENSITIVE PHOTOGRAPHIC MATERIAL COMPRISING AT LEAST ONE SILVER HALIDE EMULSION LAYER, WHICH CONTAINS DEVELOPER SUBSTANCES AND IS SUITABLE FOR QUICK-PROCESSING, CAN BE SPECTRALLY SENSITIZED BY CERTAIN BENZIMIDAZOLE TRIMETHINE CYANINES.
Inventors
- 👤 O Riester
- 👤 A Voigt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:21
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/10; G03C1/12; G03C1/14; G03C1/18; Y; Y10; Y10S; Y10S430/00; Y10S430/134
Claims Analysis
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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) | 1976-04-09 | 1976-10-09 | 1977-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-09 | 1980-10-09 | 1981-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-09 | 1984-10-09 | 1985-04-10 | $7700.00 | Window Closed / Lapsed |