US3147118A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fog reduction in photographic silver halide emulsions
Assignee: GAF Chemicals Corp
•
Filing: 1961-03-14
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Granted: 1964-09-01
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Expires: 1981-03-14
Abstract
No abstract record available.
Inventors
- 👤 Dersch Fritz
- 👤 Angelus Millet R De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:33
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
16 words
A LIGHT-SENSITIVE SILVER HALIDE EMULSION CONTAINING AN ANTIFOGGING AND STABILIZING COMPOUND OF THE FOLLOWING GENERAL FORMULA:
Claim 2
Dependent Claim
16 words
A LIGHT-SENSITIVE SILVER HALIDE EMULSION CONTAINING AN ANTIFOGGING AND STABILIZING COMPOUND OF THE FOLLOWING GENERAL 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) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |