US3142623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Permanent waving of hair and analogous processes
Assignee: L'Oréal SA
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Filing: 1961-11-22
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Granted: 1964-07-28
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Expires: 1981-11-22
Abstract
No abstract record available.
Inventors
- 👤 Zviak Charles
- 👤 Rouet Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:24
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/46; A61K8/33; A61K8/39; A61Q; A61Q5/00; A61Q5/04; Y; Y10; Y10S; Y10S424/00; Y10S424/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
39 words
A COMPOSITION FOR USE IN THE PERMANENT DEFORMATION OF LIVE HAIR WHICH COMPRISES A THIOL SELECTED FROM THE GROUP CONSISTING OF THIOLGLYCOLIC ACID, A-MERCAPTO PROPIONIC ACID, B-MERCAPTO PROPIONIC ACID AND A MERCAPTOETHANOL, AND A GLYCOL DIMETHACRYLATE OF THE FORMULA:
References Cited (Backward Citations)
US2642332A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-28 | 1968-01-27 | 1968-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-28 | 1972-01-27 | 1972-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-28 | 1976-01-27 | 1976-07-28 | $7700.00 | Window Closed / Lapsed |