Patent US3892750A successfully refreshed from Google Patents.
US3892750A
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New azomethine pigments and processes for their manufacture
Assignee: Novartis Corp
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Filing: 1973-08-03
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Granted: 1975-07-01
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Expires: 1993-08-03
Abstract
Abstract Azomethine pigments of the formula WHEREIN THE SUBSTITUENTS X, Y, Z, X1 and Y1 denote H or halogen atoms or alkyl or alkoxy groups containing 1 - 6 C atoms, or wherein the substituents X and Y form a fused benzene ring, and metal complexes of these pigments, are useful for coloring plastics and lacquers in yellow to orange shades of good fastness properties.
Inventors
- 👤 Christoph Frey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:58
CPC Classifications
C; C09; C09B; C09B55/00; C09B57/00; C09B57/06
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
8 words
AN AZOMETHINE PIGMENT METAL COMPLEX OF THE FORMULA
Claim 2
Dependent Claim
8 words
AN AZOMETHINE PIGMENT METAL COMPLEX OF THE FORMULA
Claim 3
Dependent Claim
15 words
Metal complex according to claim 1, wherein M denotes a nickel, copper or cobalt atom.
Claim 4
Dependent Claim
5 words
The compound of the formula
Claim 5
Dependent Claim
5 words
The compound of the formula
Claim 6
Dependent Claim
5 words
The compound of the formula
Claim 7
Dependent Claim
5 words
The compound of the formula
Claim 8
Dependent Claim
5 words
The compound of the formula
Claim 9
Dependent Claim
5 words
The compound of the formula
Claim 10
Dependent Claim
8 words
The 1:2-cobalt-complex of the dyestuff of the formula
Claim 11
Dependent Claim
8 words
The 1:2-cobalt-complex of the dyestuff of the formula
Claim 12
Dependent Claim
8 words
The 1:2-cobalt-complex of the dyest. of the formula
Claim 13
Dependent Claim
8 words
The 1:2-cobalt-complex of the dyest. of the formula
References Cited (Backward Citations)
US3790577A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-30 | 1978-12-30 | 1979-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-30 | 1982-12-30 | 1983-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-30 | 1986-12-30 | 1987-07-01 | $7700.00 | Window Closed / Lapsed |