Patent US3396029A successfully refreshed from Google Patents.
US3396029A
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Hardening of photographic protein-containing layers by acrolein polymers containing carboxylic groups
Assignee: Agfa Gevaert NV
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Filing: 1964-06-08
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Granted: 1968-08-06
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Expires: 1984-06-08
Abstract
No abstract record available.
Inventors
- 👤 Himmelmann Wolfgang
- 👤 Riebel Alexander
- 👤 Muller Erwin Alfons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:22
CPC Classifications
G; G03; G03C; G03C8/00; C; C08; C08L; C08L29/00; C08L29/12; G03C1/00; G03C1/005; G03C1/04; G03C1/043; G03C1/053; G03C1/06; G03C1/30; G03C1/307
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE1156649B
Cited
US3226234A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-06 | 1972-02-05 | 1972-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-06 | 1976-02-05 | 1976-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-06 | 1980-02-05 | 1980-08-06 | $7700.00 | Window Closed / Lapsed |