US3148066A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nitramino and nitrosamino compounds as antifoggants for photographic emulsions
Assignee: Eastman Kodak Co
•
Filing: 1961-06-29
•
Granted: 1964-09-08
•
Expires: 1981-06-29
Abstract
No abstract record available.
Inventors
- 👤 Holstead Coiin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:59
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A PHOTOGRAPHIC SILVER HALIDE EMULSION CONTAINING AS AN ANTIFOGGANT A NITROGEN-CONTAINING COMPOUND HAVING A FORMULA SELECTED FROM THE GROUP CONSISTING OF
Claim 2
Dependent Claim
21 words
A PHOTOGRAPHIC SILVER HALIDE EMULSION CONTAINING AS AN ANTIFOGGANT A NITROGEN-CONTAINING COMPOUND HAVING A FORMULA SELECTED FROM THE GROUP CONSISTING OF
References Cited (Backward Citations)
US2901351A
Cited
GB835047A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-08 | 1968-03-09 | 1968-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-08 | 1972-03-09 | 1972-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-08 | 1976-03-09 | 1976-09-08 | $7700.00 | Window Closed / Lapsed |