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US3290299A
Expired / Lapsed
US
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Copper chelate pigments and process of making them
Assignee: Interchemical Corp
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Filing: 1963-06-26
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Granted: 1966-12-06
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Expires: 1983-06-26
Abstract
No abstract record available.
Inventors
- 👤 Charles A Kumins
- 👤 Jr Edmund N Harvey
- 👤 George A Weber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:34
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/66; C07F9/70; C07F9/74; C09; C09B; C09B67/00; C09B67/006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A COLORANT CONSISTING ESSENTIALLY OF THE REACTION PRODUCT OF 2 MOLES OF 2,4-DIAMINO-6-PHENYL-S-TRIAZINE, 3 MOLES OF A NEUTRAL CUPRIC SALT SOLUBLE IN THE REACTION MEDIUM, AND 2 MOLES OF SALICYLADEHYDE, WHEN HEATED TOGETHER TO ABOUT 145-300*C. FOR A PERIOD OF FROM ABOUT 1 HOUR TO ABOUT 20 HOURS, THE SEPARATED AND DRIED COLORANT HAVING A CHEMICAL COMPOSITION OF ABOUT 23.8 PARTS COPPER, 2.8 PARTS HYDROGEN, 17.5 PARTS NITROGEN, 48 PARTS CARBON, AND 7.9 PARTS OXYGEN, THE PARTS BEING PARTS BY WEIGHT.
Claim 2
Dependent Claim
81 words
A COLORANT CONSISTING ESSENTIALLY OF THE REACTION PRODUCT OF 2 MOLES OF 2,4-DIAMINO-6-PHENYL-S-TRIAZINE, 3 MOLES OF A NEUTRAL CUPRIC SALT SOLUBLE IN THE REACTION MEDIUM, AND 2 MOLES OF SALICYLADEHYDE, WHEN HEATED TOGETHER TO ABOUT 145-300*C. FOR A PERIOD OF FROM ABOUT 1 HOUR TO ABOUT 20 HOURS, THE SEPARATED AND DRIED COLORANT HAVING A CHEMICAL COMPOSITION OF ABOUT 23.8 PARTS COPPER, 2.8 PARTS HYDROGEN, 17.5 PARTS NITROGEN, 48 PARTS CARBON, AND 7.9 PARTS OXYGEN, THE PARTS BEING PARTS BY WEIGHT.
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) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |