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US3395015A
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Silver complex diffusion transfer process using 3-hydroxy-propylene sulphite
Assignee: Geveaert Agfa N V
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Filing: 1965-09-24
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Granted: 1968-07-30
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Expires: 1985-09-24
Abstract
No abstract record available.
Inventors
- 👤 Willems Jozef Frans
- 👤 Rasschaert Antoine Theofiel
- 👤 Haes Louis Maria De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:10
CPC Classifications
G; G03; G03C; G03C8/00; G03C8/02; G03C8/04; G03C8/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2661293A
Cited
US2740715A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-30 | 1972-01-29 | 1972-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-30 | 1976-01-29 | 1976-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-30 | 1980-01-29 | 1980-07-30 | $7700.00 | Window Closed / Lapsed |