US3143544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Triarylphosphonium cyclopentadienylide methine dyes and photographic emulsions sensitized therewith
Assignee: Gevaert Photo Producten NV
•
Filing: 1959-10-23
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Granted: 1964-08-04
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Expires: 1979-10-23
Abstract
No abstract record available.
Inventors
- 👤 Andre Emile Van Dormael
- 👤 Jean Marie Nys
- 👤 Henri Depoorter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:48
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/10; G03C1/12; G03C1/125; C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/535; C07F9/5352; C07F9/54; C07F9/5435; C07F9/547; C07F9/5475; C07F9/6527; C07F9/653; C07F9/65324; C07F9/6536; C07F9/6539; C07F9/6541; C07F9/6558; C07F9/65583; C08; C08K; C08K5/00; C08K5/49; C08K5/50; C09; C09B; C09B23/00; C09B23/0008; C09B23/005; C09B23/0091; C09B23/10; C09B23/16; C09B23/168; C09B57/00; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/0601; G03G5/062; G03G5/0664; G03G5/0666; G03G5/0668; G03G5/067; Y; Y10; Y10S; Y10S204/00; Y10S204/90
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2153169A
Cited
US2691581A
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US2715622A
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US2838504A
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US2914522A
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US2930814A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |