US3418123A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intensification process utilizing superposed silver halide layered structure
Assignee: EIDP Inc
•
Filing: 1965-10-22
•
Granted: 1968-12-24
•
Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 Haugh Eugene Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:02
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/26; G03C5/40; G03C5/42; G03C1/00; G03C1/005; G03C1/46; G03C5/50; G03C8/00; G03C8/02; G03C8/04; Y; Y10; Y10S; Y10S430/00; Y10S430/167
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1303635A
Cited
US656751A
Cited
US2875052A
Cited
US3050391A
Cited
US3072480A
Cited
US3140179A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-24 | 1972-06-24 | 1972-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-24 | 1976-06-24 | 1976-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-24 | 1980-06-24 | 1980-12-24 | $7700.00 | Window Closed / Lapsed |