Patent US3962136B1 successfully refreshed from Google Patents.
US2598079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-speed photographic silver halide emulsions supersensitized with palladium salts
Assignee: Eastman Kodak Co
•
Filing: 1948-08-31
•
Granted: 1952-05-27
•
Expires: 1968-08-31
Abstract
No abstract record available.
Inventors
- 👤 Robert E Stauffer
- 👤 William F Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:23
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A HIGH SPEED PHOTOGRAPHIC SILVER HALIDE EMULSION SENSITIZED WITH AT LEAST ONE GOLD COMPOUND IN A CONCENTRATION EQUAL TO FROM 0.0003 TO 0.015% BY MOLES OF THE SILVER HALIDE IN THE EMULSION, SAID EMULSION CONTAINING AS A SUPERSENSITIZER, AT LEAST ONE PALLADIUM SALT SELECTED FROM THE GROUP CONSISTING OF PALLADIUM SALTS REPRESENTED BY THE FOLLOWING GENERAL FORMULAS:
Claim 2
Dependent Claim
57 words
A HIGH SPEED PHOTOGRAPHIC SILVER HALIDE EMULSION SENSITIZED WITH AT LEAST ONE GOLD COMPOUND IN A CONCENTRATION EQUAL TO FROM 0.0003 TO 0.015% BY MOLES OF THE SILVER HALIDE IN THE EMULSION, SAID EMULSION CONTAINING AS A SUPERSENSITIZER, AT LEAST ONE PALLADIUM SALT SELECTED FROM THE GROUP CONSISTING OF PALLADIUM SALTS REPRESENTED BY THE FOLLOWING GENERAL FORMULAS:
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) | 1955-05-27 | 1955-11-26 | 1956-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-27 | 1959-11-26 | 1960-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-27 | 1963-11-26 | 1964-05-27 | $7700.00 | Window Closed / Lapsed |