US3748138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal complex in silver halide development
Assignee: Eastman Kodak Co
•
Filing: 1971-10-14
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Granted: 1973-07-24
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Expires: 1991-10-14
Abstract
Abstract THE RATE OF FORMATION OF METALLIC SILVER IN THE PHOTOGRAPHIC PROCESS IS INCREASED BY THE USE OF A METAL COMPLEX DURING PHOTOGRAPHIC DEVELOPMENT.
Inventors
- 👤 V Bissonette
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:16
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/26; G03C5/29; G03C5/30; G03C1/00; G03C1/005; G03C1/06; G03C1/08; Y; Y10; Y10S; Y10S430/00; Y10S430/137
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-23 | 1977-01-22 | 1977-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-23 | 1981-01-22 | 1981-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-23 | 1985-01-22 | 1985-07-24 | $7700.00 | Window Closed / Lapsed |