US3558259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Human hair dyeing with aminophenols
Assignee: L'Oréal SA
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Filing: 1967-06-12
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Granted: 1971-01-26
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Expires: 1987-06-12
Abstract
Abstract THE PROCESS OF USING AND COMPOSITIONS CONTAINING DYES, WHICH ARE SUITABLE FOR ONE STEP DYEING OF HAIR AND KERATIN FIBERS WITHOUT REQUIRING THE USE OF SEPARATE DYE MODIFIERS WHICH ARE EXCEPTIONALLY COLOR STABLE, HAVING THE FORMULA: 2-(R-NH-),4-R,R4-PHENOL IN WHICH R IS SELECTED FROM THE GROUP CONSISTING OF HYDRO GEN AND ALKYL, R1 IS SELECTED FROM THE GROUP CONSISTING OF HYDROXY AND ALKYL, AND R4 WHICH CAN BE IN POSITION 5 OR 6 ON THE RING IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, HALOGEN, HYDROXY AND ALKYL.
Inventors
- 👤 Gregoire Kalopissis
- 👤 Andree Bugaut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:15
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: 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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |