US2552230A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fog inhibitors for photographic emulsions
Assignee: Eastman Kodak Co
•
Filing: 1949-05-04
•
Granted: 1951-05-08
•
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
2026-10-27 06:49
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A SILVER HALIDE EMULSION CONTAINING AN ACIDOPLATINUM COMPLEX AS A STABILIZER AGENT SAID COMPLEX CONTAINING A PLATINUM ATOM IN THE CATION.
Claim 2
Dependent Claim
21 words
A SILVER HALIDE EMULSION CONTAINING AN ACIDOPLATINUM COMPLEX AS A STABILIZER AGENT SAID COMPLEX CONTAINING A PLATINUM ATOM IN THE CATION.
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) | 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 |