Patent US3904660A successfully refreshed from Google Patents.
US3904660A
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Cationic anthraquinone dyes
Assignee: Honeywell International Inc
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Filing: 1972-12-15
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Granted: 1975-09-09
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Expires: 1992-12-15
Abstract
Abstract Cationic dyes, exhibiting excellent resistance to ozone fading when incorporated into a fiber, having the formula WHEREIN R is H or OH, R1 is H, lower alkyl, phenyl or R2 is H, lower alkyl or halogen, R3 and R4 are lower alkyl or together form a morpholino, pyrrolidino or piperidino group, X is alkylene or alkarylene of 1 to 10 carbon atoms, Y is (CH2)n-Q wherein Q is a divalent alkene radical of 2 to 5 carbon atoms, phenylene, -O-, CHR, or a valence bond, n is an integer of 1 to 4, m is an integer equal to the number of positively charged nitrogen atoms and A is an anion.
Inventors
- 👤 Nagib A Doss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:39
CPC Classifications
C; C09; C09B; C09B1/00; C09B1/002; C09B1/16; C09B1/20; C09B1/26; C09B1/50; C09B1/51; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/924
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
6 words
A CATIONIC DYE HAVING THE FORMULA
Claim 2
Dependent Claim
6 words
A CATIONIC DYE HAVING THE FORMULA
Claim 3
Dependent Claim
11 words
The cationic dyes defined in claim 1 wherein R1 is H.
Claim 4
Dependent Claim
12 words
The cationic dye as defined in claim 2 wherein Q is phenylene.
Claim 5
Dependent Claim
21 words
The cationic dye as defined in claim 2 wherein Q is a divalent alkene radical of 2 to 5 carbon atoms.
Claim 6
Dependent Claim
15 words
The cationic dye as defined in claim 3 wherein R3 and R4 are lower alkyl.
Claim 7
Dependent Claim
15 words
The cationic dye as defined in claim 4 wherein R3 and R4 are lower alkyl.
Claim 8
Dependent Claim
11 words
The cationic dye as defined in claim 1 wherein R1 is
Claim 9
Dependent Claim
12 words
The cationic dye as defined in claim 7 wherein R is OH.
Claim 10
Dependent Claim
11 words
The cationic dye as defined in claim 7 wherein Y is
Claim 11
Dependent Claim
13 words
The cationic dye as defined in claim 7 wherein Y is -CH2-CH CH-.
Claim 12
Dependent Claim
6 words
A cationic dye having the formula
Claim 13
Dependent Claim
6 words
A cationic dye having the formula
Claim 14
Dependent Claim
6 words
A cationic dye having the formula
Claim 15
Dependent Claim
6 words
A cationic dye having the formula
Claim 16
Dependent Claim
6 words
A cationic dye having the formula
Claim 17
Dependent Claim
6 words
A cationic dye having the formula
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) | 1978-09-08 | 1979-03-10 | 1979-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-08 | 1983-03-10 | 1983-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-08 | 1987-03-10 | 1987-09-09 | $7700.00 | Window Closed / Lapsed |