US2552229A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fog inhibitors for photographic emulsions
Assignee: Eastman Kodak Co
•
Filing: 1949-05-04
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Granted: 1951-05-08
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Expires: 1969-05-04
Abstract
No abstract record available.
Inventors
- 👤 Robert E Stauffer
- 👤 William F Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:05
CPC Classifications
A; A01; A01B; A01B13/00; A01B13/08; A23; A23B; A23B7/00; A23B7/14; A23B7/144; A23B7/152; G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
A PHOTOGRAPHIC SILVER HALIDE EMULS ON CONTAINING AN ACIDO-PALLADIUM COMPLEX AS A STABILIZING AGENT.
Claim 2
Dependent Claim
14 words
A PHOTOGRAPHIC SILVER HALIDE EMULS ON CONTAINING AN ACIDO-PALLADIUM COMPLEX AS A STABILIZING AGENT.
References Cited (Backward Citations)
US2448060A
Cited
US2448857A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-07 | 1954-11-06 | 1955-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-07 | 1958-11-06 | 1959-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-07 | 1962-11-06 | 1963-05-08 | $7700.00 | Window Closed / Lapsed |