US3869442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phenyl-azo-n-acylamidoethylaniline compounds
Assignee: Novartis Corp
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Filing: 1971-10-29
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Granted: 1975-03-04
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Expires: 1991-10-29
Abstract
Abstract Mono- and dis-azo compounds particularly useful for dyeing polyamide textile materials in deep yellow to red crock-fast shades with excellent fastness to light and brightness and improved buildup and contain a phenyl or phenylazophenyl diazo component and an aniline coupling component, the nitrogen atom of which is substituted with an acylamidoethyl group camera ready copy.
Inventors
- 👤 Max A Weaver
- 👤 Jr Clarence A Coates
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:59
CPC Classifications
C; C09; C09B; C09B29/00; C09B29/06; C09B29/08; C09B29/0805; C09B29/0807; C09B29/0809; C09B29/0811; C09B29/0814; C09B31/00; C09B31/02; C09B31/04; C09B31/043; C09B43/00; C09B43/12; C09B43/124; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/924
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
5 words
A COMPOUND IF THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND IF THE FORMULA
Claim 3
Dependent Claim
52 words
A compound according to claim 1 wherein R1 is hdyrogen, chlorine, bromine, cyano or lower alkylsulfonyl; R2 is lower alkylsulfonyl, cyano or lower alkoxycarbonyl; R3 is hydrogen, chlorine or bromine; R4 is hydrogen, methyl or lower alkanoylamino; R5 is hydrogen; R6 is lower alkyl; and R7 is lower alkyl or lower alkoxy.
Claim 4
Dependent Claim
9 words
A compound according to claim 1 having the formula
Claim 5
Dependent Claim
9 words
A compound according to claim 1 having the formula
Claim 6
Dependent Claim
9 words
A compound according to claim 1 having the formula
Claim 7
Dependent Claim
9 words
A compound according to claim 1 having the formula
Claim 8
Dependent Claim
9 words
A compound according to claim 1 having the formula
Claim 9
Dependent Claim
9 words
a compound according to claim 1 having the formula
References Cited (Backward Citations)
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Cited
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Cited
US3546204A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-03 | 1978-09-02 | 1979-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-03 | 1982-09-02 | 1983-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-03 | 1986-09-02 | 1987-03-04 | $7700.00 | Window Closed / Lapsed |