US4013404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of dyeing hair with indolines, indoles and indazoles
Assignee: Wyeth Holdings LLC
•
Filing: 1975-04-07
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Granted: 1977-03-22
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Expires: 1995-04-07
Abstract
Abstract A method for dyeing hair and other keratinaceous materials with certain amino, hydroxy, methoxy and nitro-containing indoline, indole and indazole compounds, and combinations thereof, and keratinaceous fibers dyed therewith.
Inventors
- 👤 Richard Alfred Parent
- 👤 Frank Fred Loffelman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:15
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/02; D06P3/04; D06P3/08; A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/49; A61K8/4906; A61K8/4913; A61K8/492; A61K8/494; A61Q; A61Q5/00; A61Q5/06; A61Q5/065; A61Q5/10
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
39 words
A method for dyeing hair and other keratinaceous materials which comprises contacting said materials with a compound selected from the group consisting of 5-aminoindoline, 5,6-diaminoindoline, 5,7-diaminoindoline, 5-amino-6-nitroindoline, 5-bromo-7-nitroindoline, 5-hydroxyindoline, 6-nitroindoline, 5-aminoindole, 6-aminoindole, 5-hydroxyindole, 5-methoxyindole, 5-hydroxy-2-methylindole, 5-amino-2,3-dimethylindole, 6-nitroindole, and 5-aminoindole.
Claim 2
Independent Claim
39 words
A method for dyeing hair and other keratinaceous materials which comprises contacting said materials with a compound selected from the group consisting of 5-aminoindoline, 5,6-diaminoindoline, 5,7-diaminoindoline, 5-amino-6-nitroindoline, 5-bromo-7-nitroindoline, 5-hydroxyindoline, 6-nitroindoline, 5-aminoindole, 6-aminoindole, 5-hydroxyindole, 5-methoxyindole, 5-hydroxy-2-methylindole, 5-amino-2,3-dimethylindole, 6-nitroindole, and 5-aminoindole.
Claim 3
Dependent Claim
11 words
A method of claim 1 wherein the compound is 6-aminoindoline dihydrochloride.
Claim 4
Dependent Claim
10 words
A method of claim 1 wherein the compound is 5-bromo-7-nitroindoline.
Claim 5
Dependent Claim
10 words
A method of claim 1 wherein the compound is 5-aminoindole.
Claim 6
Dependent Claim
10 words
A method of claim 1 wherein the compound is 5-hydroxy-2-methylindole.
Claim 7
Dependent Claim
10 words
A method of claim 1 wherein the compound is 5-aminoindazole.
Claim 8
Dependent Claim
9 words
Keratinaceous material dyed by the method of claim 1.
References Cited (Backward Citations)
GB887579A
Cited
US3194734A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-03-21 | 1980-09-20 | 1981-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-21 | 1984-09-20 | 1985-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-21 | 1988-09-20 | 1989-03-22 | $7700.00 | Window Closed / Lapsed |