US3919265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diaminobenzoquinones, the method of producing the same and hair dye compositions containing the same
Assignee: L'Oréal SA
•
Filing: 1973-06-18
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Granted: 1975-11-11
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Expires: 1993-06-18
Abstract
Abstract 2,5-DIAMINO-1,4-BENZOQUINONES ARE USED IN THE PRODUCTION OF HAIR DYE COMPOSITIONS AND CAN BE PREPARED BY CONDENSING A CORRESPONDING 3-AMINO-4-METHOXY PHENOL DERIVATIVE ON ONE OF A CORRESPONDING HYDROXY ANILINE OR PHENYLENEDIAMINE DERIVATIVE, A CORRESPONDING BENZOQUINONE IMINE DERIVATIVE OR A CORRESPONDING NITROSO DERIVATIVE.
Inventors
- 👤 Andree Bugaut
- 👤 Monique Laudon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:28
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/12; C07D295/125; C07D295/13; A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/41; A61K8/413; A61Q; A61Q5/00; A61Q5/06; A61Q5/065; A61Q5/10; Y; Y10; Y10S; Y10S424/00; Y10S424/02
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
12 words
DIAMINOBENZOQUIONIONE SELECTED FROM THE GROUP CONSISTING OF (1) A DIAMINOBENZOQUIONE OF THEFORMULA
Claim 2
Dependent Claim
12 words
DIAMINOBENZOQUIONIONE SELECTED FROM THE GROUP CONSISTING OF (1) A DIAMINOBENZOQUIONE OF THEFORMULA
Claim 3
Dependent Claim
13 words
A SALT OF THE DIAMINOBENZOQUIONE OF (1) WITH A MINERAL OR ORGANIC ACID.
Claim 4
Dependent Claim
13 words
A SALT OF THE DIAMINOBENZOQUIONE OF (1) WITH A MINERAL OR ORGANIC ACID.
Claim 5
Dependent Claim
13 words
a salt of the diaminobenzoquinone of (1) with a mineral or organic acid.
Claim 6
Dependent Claim
13 words
a salt of the diaminobenzoquinone of (1) with a mineral or organic acid.
Claim 7
Dependent Claim
13 words
a salt of the diaminobenzoquinone of (1) with a mineral or organic acid.
Claim 8
Dependent Claim
13 words
a salt of the diaminobenzoquinone of (1) with a mineral or organic acid.
Claim 9
Dependent Claim
13 words
Diaminobenzoquinone selected from the group consisting of (1) a diaminobenzoquinone of the formula
Claim 10
Dependent Claim
13 words
Diaminobenzoquinone selected from the group consisting of (1) a diaminobenzoquinone of the formula
Claim 11
Dependent Claim
13 words
a salt of the diaminobenzoquinone of (1) with a mineral or organic acid.
Claim 12
Dependent Claim
13 words
a salt of the diaminobenzoquinone of (1) with a mineral or organic acid.
Claim 13
Dependent Claim
13 words
a salt of the diaminobenzoquinone of (1) with a mineral or organic acid.
Claim 14
Dependent Claim
13 words
a salt of the diaminobenzoquinone of (1) with a mineral or organic acid.
Claim 15
Dependent Claim
11 words
The diaminobenzoquinone of claim 2 which is 2-amino-5-(4''-di- Beta -hydroxyethylamino anilino)-1,4-benzoquinone.
Claim 16
Dependent Claim
13 words
Diamonobenzoquinone selected from the group consisting of (1) a diaminobenzoquinone of the formula
Claim 17
Dependent Claim
13 words
Diamonobenzoquinone selected from the group consisting of (1) a diaminobenzoquinone of the formula
Claim 18
Dependent Claim
13 words
Diaminobenzoquinone selected from the group consisting of (1) a diaminobenzoquinone of the formula
Claim 19
Dependent Claim
13 words
Diaminobenzoquinone selected from the group consisting of (1) a diaminobenzoquinone of the formula
References Cited (Backward Citations)
US3114755A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-10 | 1979-05-12 | 1979-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-10 | 1983-05-12 | 1983-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-10 | 1987-05-12 | 1987-11-11 | $7700.00 | Window Closed / Lapsed |