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US3468661A
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US
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Photographic material sensitized with a trimethine dye containing a benzoyl substituted benzimidazole nucleus
Assignee: Gevaert Photo Producten NV
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Filing: 1964-01-14
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Granted: 1969-09-23
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Expires: 1984-01-14
Abstract
No abstract record available.
Inventors
- 👤 Marcel Jan Libeer
- 👤 Henri Depoorter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:25
CPC Classifications
C; C09; C09B; C09B23/00; C09B23/02; C09B23/06; G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/0664; G03G5/0666; G03G5/0668; G03G5/067; G03G5/09
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3268334A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-22 | 1973-03-24 | 1973-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-22 | 1977-03-24 | 1977-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-22 | 1981-03-24 | 1981-09-23 | $7700.00 | Window Closed / Lapsed |