US3000738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optically sensitized photographic silver halide emulsion
Assignee: Agfa Gevaert NV
•
Filing: 1956-01-31
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Granted: 1961-09-19
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Expires: 1976-01-31
Abstract
No abstract record available.
Inventors
- 👤 Rintelen Harald Von
- 👤 Riester Oskar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:36
CPC Classifications
C; C09; C09B; C09B23/00; C09B23/02; C07; C07D; C07D239/00; C07D239/02; C07D239/24; C07D239/28; C07D239/46; C07D239/58; C09B23/0091; C09B23/10; C09B23/102; G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/10; G03C1/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A PHOTOGRAPHIC MATERIAL COMPRISING A SILVER HALIDE EMULSION LAYER CONTAINING AS AN OPTICAL SENSITIZER A NEUTROCYANINE DYE CORRESPONDING TO THE FORMULA:
Claim 2
Dependent Claim
21 words
A PHOTOGRAPHIC MATERIAL COMPRISING A SILVER HALIDE EMULSION LAYER CONTAINING AS AN OPTICAL SENSITIZER A NEUTROCYANINE DYE CORRESPONDING TO THE FORMULA:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-18 | 1965-03-20 | 1965-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-18 | 1969-03-20 | 1969-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-18 | 1973-03-20 | 1973-09-19 | $7700.00 | Window Closed / Lapsed |