Patent US3184387A successfully refreshed from Google Patents.
US3184387A
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Process for dyeing hair with substituted 2, 4-diaminophenols
Assignee: L'Oréal SA
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Filing: 1959-12-07
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Granted: 1965-05-18
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Expires: 1979-12-07
Abstract
No abstract record available.
Inventors
- 👤 Seemuller John Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:59
CPC Classifications
A; A61; A61Q; A61Q5/00; A61Q5/10; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/41; A61K8/415
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
A PROCESS FOR DYEING LIVE HUMAN HAIR WHICH COMPRISES: APPLYING TO THE HAIR AN AQUEOUS SOLUTION AS AN OXIDATIVE DYE STUFF OF A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
27 words
A PROCESS FOR DYEING LIVE HUMAN HAIR WHICH COMPRISES: APPLYING TO THE HAIR AN AQUEOUS SOLUTION AS AN OXIDATIVE DYE STUFF OF A COMPOUND OF THE FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-17 | 1968-11-16 | 1969-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-17 | 1972-11-16 | 1973-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-17 | 1976-11-16 | 1977-05-18 | $7700.00 | Window Closed / Lapsed |