Patent US3226232A successfully refreshed from Google Patents.
US3226232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fog reduction in silver halide emulsions with a diphenyldisulfide dicarboxylic acid
Assignee: GAF Chemicals Corp
•
Filing: 1963-05-16
•
Granted: 1965-12-28
•
Expires: 1983-05-16
Abstract
No abstract record available.
Inventors
- 👤 Dersch Fritz
- 👤 Charles A Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:20
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/34; G03C1/346
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
19 words
A LIGHT-SENSITIVE SILVER HALIDE EMULSION CONTAINING AS AN ANTIFOGGING AND STABILIZING AGENT A COMPOUND OF THE FOLLOWING GENERAL FORMULA:
Claim 2
Dependent Claim
19 words
A LIGHT-SENSITIVE SILVER HALIDE EMULSION CONTAINING AS AN ANTIFOGGING AND STABILIZING AGENT A COMPOUND OF THE FOLLOWING GENERAL FORMULA:
References Cited (Backward Citations)
US2440110A
Cited
US3062654A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |