US3674414A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dyeing human hair and composition for including an oxidation dye and coupler thereof
Assignee: L'Oréal SA
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Filing: 1968-12-12
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Granted: 1972-07-04
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Expires: 1988-12-12
Abstract
Abstract A GROUP OF COUPLING AGENTS, OF WHICH THE FOLLOWING ARE REPRESENTATIVE: 3-DIMETHYLAMINO-PHENYLUREA, 3-DIMETHYLAMINO-PHENYLTHIOUREA, (3-HYDROXY-6-METHOXY)-PHENYLUREA, (3-HYDROXY-6-METHOXY)-PHENYLTHIOUREA, (2,4-DEI METHYL-3-HYDROXY-PHENYLUREA, (2,4-DIMETHYL-3-HYDROXY)-PHENYLTHIOUREA, AND (4-METHYL-3-HYDROXY)PHENYLTHIOUREA. THE INVENTION ALSO INCLUDES THESE COUPLERS IN ASSOCIATION WITH OXIDATION DYES, AND A METHOD OF DYEING HAIR USING SAID COMPOSITIONS.
Inventors
- 👤 Gregoire Kalopissis
- 👤 Jean Gascon
- 👤 Jacqueline Gallien
- 👤 Andree Bugaut
- 👤 Hubert Gaston-Breton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:22
CPC Classifications
C; C07; C07C; C07C335/00; C07C335/04; C07C335/16; C07C335/18; A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/42; A61K8/46; A61K8/49; A61K8/494; A61Q; A61Q5/00; A61Q5/10; C07C275/00; C07C275/28; C07C275/32; C07C275/34
Claims Analysis
Total Claims: 0
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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) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |