US3700448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disproportionating imagewise distribution of metallic nuclei to form visible metallic image
Assignee: Eastman Kodak Co
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Filing: 1969-07-29
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Granted: 1972-10-24
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Expires: 1989-07-29
Abstract
Abstract PROCESSES, AND ELEMENTS FOR USE THEREWITH, ARE DESCRIBED IN WHICH IMAGES ARE DEVELOPED BY THE DISPROPORTIONATION OF A METAL COMPOUND IN THE PRESENCE OF AN IMAGEWISE DISTRIBUTION OF NUCLEI WHICH ACCELERATE THE DISPROPORTIONATION OF THE METAL COMPOUND.
Inventors
- 👤 Peter John Hillson
- 👤 Michael Ridgway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:02
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/72
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) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |