US3933886A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diamino-nitro-benzene compounds
Assignee: Henkel AG and Co KGaA
•
Filing: 1974-05-16
•
Granted: 1976-01-20
•
Expires: 1994-05-16
Abstract
Abstract A hair dye preparation contains diamino-nitrobenzene compounds as a direct hair dye or contains diamino-nitrobenzene compounds as coupling components in combination with developing components for oxidation dyestuffs. A process for dyeing human hair comprises applying one of these preparations to the hair.
Inventors
- 👤 Ferdi Saygin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:05
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/41; A61K8/418; A61Q; A61Q5/00; A61Q5/06; A61Q5/065; A61Q5/10; C; C07; C07C; C07C255/00; C09; C09B; C09B29/00; C09B51/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
70 words
A compound of the formulae selected from the group consisting of ##SPC10## wherein A 3 is a member selected from the group consisting of hydrogen, alkyl of 1 to 4 carbon atoms, hydroxyalkyl of 1 to 4 carbon atoms, alkanoyl of 2 to 10 carbon atoms, cyano alkanoyl of 2 to 10 carbon atoms in the alkanoyl and acyl of aromatic hydrocarbon carboxylic acids having 7 to 15 carbon atoms.
Claim 2
Dependent Claim
70 words
A compound of the formulae selected from the group consisting of ##SPC10## wherein A 3 is a member selected from the group consisting of hydrogen, alkyl of 1 to 4 carbon atoms, hydroxyalkyl of 1 to 4 carbon atoms, alkanoyl of 2 to 10 carbon atoms, cyano alkanoyl of 2 to 10 carbon atoms in the alkanoyl and acyl of aromatic hydrocarbon carboxylic acids having 7 to 15 carbon atoms.
Claim 3
Dependent Claim
53 words
A compound of the formulae selected from the group consisting of ##SPC11## wherein A 3 is a member selected from the group consisting of alklyl of 1 to 10 carbon atoms, hydroxyalkyl of 1 to 10 carbon atoms, alkanoyl of 2 to 10 carbon atoms, and the activated methylene group --CO--CH 2 --CN.
Claim 4
Dependent Claim
53 words
A compound of the formulae selected from the group consisting of ##SPC11## wherein A 3 is a member selected from the group consisting of alklyl of 1 to 10 carbon atoms, hydroxyalkyl of 1 to 10 carbon atoms, alkanoyl of 2 to 10 carbon atoms, and the activated methylene group --CO--CH 2 --CN.
Claim 5
Dependent Claim
9 words
A compound according to claim 2, which is 1-acetylamino-3-cyanoacetylamino-4-nitro-benzene.
References Cited (Backward Citations)
US3634478A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-01-19 | 1979-07-21 | 1980-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-19 | 1983-07-21 | 1984-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-19 | 1987-07-21 | 1988-01-20 | $7700.00 | Window Closed / Lapsed |