US3134721A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyaminophenol oxidation hair dyes
Assignee: L'Oréal SA
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Filing: 1959-12-07
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Granted: 1964-05-26
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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 13:17
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; D06P3/00; D06P3/02; D06P3/04; D06P3/30; D06P3/305
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
35 words
A PROCESS FOR DYEING LIVE HUMAN HAIR WHICH COMPRISES APPLYING THERETO AN AQUEOUS SOLUTION AS AN OXIDATIVE DYESTUFF CONTAINING 2:4:6-TRIAMINOPHENOL, THEREAFTER SAID HAIR IS AERATED TO PROMOTE SUBSTANTIAL OXIDATION OF THIS COMPOUND BEFORE BEING RINSED.
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) | 1967-05-26 | 1967-11-25 | 1968-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-26 | 1971-11-25 | 1972-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-26 | 1975-11-25 | 1976-05-26 | $7700.00 | Window Closed / Lapsed |