US3457301A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disazomethine pigments
Assignee: PRODUITS CHIMIQUES UGINE KUKLMANN
•
Filing: 1966-04-26
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Granted: 1969-07-22
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Expires: 1986-04-26
Abstract
No abstract record available.
Inventors
- 👤 Maurice Auguste Jacques Lenoir
- 👤 Jean Denis Bernard Ligot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:56
CPC Classifications
C; C09; C09B; C09B55/00; C09B55/005; C08; C08K; C08K5/00; C08K5/16; C08K5/29; C09B55/007
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2264894A
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US2255597A
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US2301861A
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US2276158A
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US2611697A
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US2405886A
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US2466670A
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US2709700A
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US2849487A
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US3054824A
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US2907790A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-21 | 1973-01-20 | 1973-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-21 | 1977-01-20 | 1977-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-21 | 1981-01-20 | 1981-07-22 | $7700.00 | Window Closed / Lapsed |