US3609134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Azo pigments containing a 4-carboxamido phenomorpholene-(3) group
Assignee: Novartis AG
•
Filing: 1968-09-24
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Granted: 1971-09-28
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Expires: 1988-09-24
Abstract
Abstract Compounds of the formula R1-N N-R2-CONH-R3 in which R1 and R3 each represents an aryl or a heterocyclic residue, at least one of the residues R1 and R3 being a phenomorpholone-(3) residue, and R2 represents a hydroxynaphthalene residue in which the azo, hydroxy and carboxylic acid amide groups are in 1,2,3-position or the residue of an enolizable or enolized ketomethylene compound are valuable pigments which are useful for coloring plastics and lacquers in fast yellow-to-red shades of excellent fastness properties.
Inventors
- 👤 Rudolf Mory
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:24
CPC Classifications
C; C09; C09B; C09B35/00; C09B35/02; C09B33/00; C09B33/02; C09B33/147; C09B33/153; C09B43/00; C09B43/32
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
11 words
A monoazo pigment as claimed in claim 1 of the formula
Claim 2
Dependent Claim
11 words
A monoazo pigment as claimed in claim 2 of the formula
Claim 3
Dependent Claim
11 words
A monoazo pigment as claimed in claim 1 of the formula
Claim 4
Dependent Claim
11 words
A monoazo pigment as claimed in claim 1 of the formula
Claim 5
Dependent Claim
11 words
A monoazo pigment as claimed in claim 1 of the formula
Claim 6
Dependent Claim
11 words
A disazo pigment as claimed in claim 1 of the formula
Claim 7
Dependent Claim
10 words
The compound as claimed in claim 1 of the formula
Claim 8
Dependent Claim
10 words
The compound as claim in claim 1 of the formula
Claim 9
Dependent Claim
10 words
The compound as claimed in claim 1 of the formula
Claim 10
Dependent Claim
10 words
The compound as claimed in claim 1 of the formula
Claim 11
Dependent Claim
10 words
The compound as claimed in claim 1 of the formula
Claim 12
Dependent Claim
10 words
The compound as claimed in claim 1 of the formula
Claim 13
Dependent Claim
9 words
The compound as claimed in claim 1 of formula
References Cited (Backward Citations)
US3124565A
Cited
US1567731A
Cited
US2364351A
Cited
US2883374A
Cited
US2908678A
Cited
US3043827A
Cited
US3118870A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |