US3385704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sensitization of silver bromoiodide emulsions with amidophosphoric acid polyethyleneglycol esters
Assignee: Agfa Gevaert NV
•
Filing: 1964-07-01
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Granted: 1968-05-28
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Expires: 1984-07-01
Abstract
No abstract record available.
Inventors
- 👤 Grabhofer Herbert
- 👤 Ulrich Hans
- 👤 Randolph August
- 👤 Saleck Wilhelm
- 👤 Posse Rolf-Fred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:56
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/10; G03C1/12; C; C08; C08G; C08G79/00; C08G79/02; C08G79/04; G03C1/04; G03C1/043
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-28 | 1971-11-27 | 1972-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-28 | 1975-11-27 | 1976-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-28 | 1979-11-27 | 1980-05-28 | $7700.00 | Window Closed / Lapsed |