Patent US3671643A successfully refreshed from Google Patents.
US3671643A
Expired / Lapsed
US
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Treatment of excessive sebaceous glands secretion with substituted cysteamine compounds
Assignee: L'Oréal SA
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Filing: 1969-09-15
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Granted: 1972-06-20
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Expires: 1989-09-15
Abstract
Abstract A process of treating acne with a composition containing substituted cysteamine compounds.
Inventors
- 👤 Gregoire Kalopissis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:48
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/46; A61K8/40; A61K8/44; A61K8/447; A61Q; A61Q19/00; A61Q19/008; A61Q5/00; A61Q5/008
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
11 words
The method of claim 1 wherein said active ingredient is S-benzylcysteamine.
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) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |