US2955036A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fog reduction in photographic silver halide emulsions
Assignee: GAF Chemicals Corp
•
Filing: 1958-04-25
•
Granted: 1960-10-04
•
Expires: 1978-04-25
Abstract
No abstract record available.
Inventors
- 👤 Dersch Fritz
- 👤 Angelus Millet R De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:29
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/34; G03C1/346
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
A LIGHT SENSITIVE PHOTOGRAPHIC MATERIAL COMPRISING A BASE AND A LIGHT SENSITIVE SILVER HALIDE EMULSION, SAID LIGHT SENSITIVE MATERIAL CONTAINING AS AN ANTIFOGGANT A COMPOUND OF THE FOLLOWING CONSTITUTION:
Claim 2
Dependent Claim
29 words
A LIGHT SENSITIVE PHOTOGRAPHIC MATERIAL COMPRISING A BASE AND A LIGHT SENSITIVE SILVER HALIDE EMULSION, SAID LIGHT SENSITIVE MATERIAL CONTAINING AS AN ANTIFOGGANT A COMPOUND OF THE FOLLOWING CONSTITUTION:
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) | 1963-10-04 | 1964-04-04 | 1964-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-04 | 1968-04-04 | 1968-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-04 | 1972-04-04 | 1972-10-04 | $7700.00 | Window Closed / Lapsed |