US3210252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1-methyl-2-hydroxy-4-aminobenzene as a modifier for oxidation dyes
Assignee: Individual
•
Filing: 1962-11-23
•
Granted: 1965-10-05
•
Expires: 1982-11-23
Abstract
No abstract record available.
Inventors
- 👤 Blanke Rolf
- 👤 Gross Erika
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:51
CPC Classifications
B; B22; B22D; B22D19/00; B22D19/0009; A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/41; A61K8/415; A61Q; A61Q5/00; A61Q5/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A METHOD OF DYEING HAIR, COMPRISING THE STEP OF APPLYING TO HAIR WHICH IS TO BE DYED 1-METHYL-2-HYDROXY4-AMINOBENZENE, AT LEAST ONE SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF 1-METHYL-2,5-DIAMINOBENZENE, 1,4-DIAMINOBENZENE, 1,2,4-TRIAMINOBENZENE, 1-METHYL-2,4-DIAMINOBENZENE, 1,4-DIMETHYL-2,5-DIAMINOBENZENE, 1-METHOXY-4-CHLORO-2,5-DIAMINOBENZENE, 1-METHOXY-4-METHYL2,5-DIAMINOBENZENE, 1-AMINO-4-HYDROXY-BENZENE, 1AMINO-2-METHYL-4-HYDROXY-BEZENE, 1-AMINO-3-METHYL-4HYDROXY-BENZENE, 1,3-DIAMINO-4-HYDROXY-BENZENE AND 4,4''-DIAMINODIPHENYLAMINE AND AN EFFECTIVE AMOUNT OF AN OXIDIZING AGENT THEREFOR.
Claim 2
Independent Claim
50 words
A METHOD OF DYEING HAIR, COMPRISING THE STEP OF APPLYING TO HAIR WHICH IS TO BE DYED 1-METHYL-2-HYDROXY4-AMINOBENZENE, AT LEAST ONE SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF 1-METHYL-2,5-DIAMINOBENZENE, 1,4-DIAMINOBENZENE, 1,2,4-TRIAMINOBENZENE, 1-METHYL-2,4-DIAMINOBENZENE, 1,4-DIMETHYL-2,5-DIAMINOBENZENE, 1-METHOXY-4-CHLORO-2,5-DIAMINOBENZENE, 1-METHOXY-4-METHYL2,5-DIAMINOBENZENE, 1-AMINO-4-HYDROXY-BENZENE, 1AMINO-2-METHYL-4-HYDROXY-BEZENE, 1-AMINO-3-METHYL-4HYDROXY-BENZENE, 1,3-DIAMINO-4-HYDROXY-BENZENE AND 4,4''-DIAMINODIPHENYLAMINE AND AN EFFECTIVE AMOUNT OF AN OXIDIZING AGENT THEREFOR.
References Cited (Backward Citations)
GB805746A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |