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US3738799A
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Dyeing human hair with 2-aminophenols
Assignee: L'Oréal SA
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Filing: 1970-08-31
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Granted: 1973-06-12
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Expires: 1990-08-31
Abstract
Abstract Hair dye compositions that contain a dye compound selected from the group consisting of 6-amino-4-methoxy-2-aminophenol, 5-amino4-methoxy-2-aminophenol, 6-amino-4-dimethylamino-2-aminophenol, 6-amino-4-diethylamino-2-aminophenol and 4-diethylamino-2aminophenol.
Inventors
- 👤 G Kalopissis
- 👤 A Bugaut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:56
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/41; A61K8/415; A61Q; A61Q5/00; A61Q5/10; D; D06; D06P; D06P1/00; D06P1/32
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
20 words
The composition of claim 1, in which said dye is selected from the group consisting of 6-amino-4-dimethylamino-2-aminophenol, 6-amino-4-diethylamino-2-aminophenol and 4-diethylamino-2-aminophenol.
Claim 2
Dependent Claim
10 words
The composition of claim 1, wherein said dye is 6-amino-4-methoxy-2-aminophenol.
Claim 3
Dependent Claim
10 words
The composition of claim 1, wherein said dye is 5-amino-4-methoxy-2-aminophenol.
Claim 4
Dependent Claim
10 words
The composition of claim 1, wherein said dye is 6-amino-4-dimethylamino-2-aminophenol.
Claim 5
Dependent Claim
10 words
The composition of claim 1, wherein said dye is 6-amino-4-diethylamino-2-aminophenol.
Claim 6
Dependent Claim
10 words
The composition of claim 1, wherein said dye is 4-diethylamino-2-aminophenol.
Claim 7
Dependent Claim
16 words
The composition of claim 1, containing approximately 0.5 to 5 percent by weight of said dye.
Claim 8
Dependent Claim
19 words
The process of dyeing live human hair comprising applying thereto coloring amounts of the dyeing composition of claim 1.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-11 | 1976-12-11 | 1977-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-11 | 1980-12-11 | 1981-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-11 | 1984-12-11 | 1985-06-12 | $7700.00 | Window Closed / Lapsed |