US3384548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Depilatory compositions
Assignee: L'Oréal SA
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Filing: 1964-03-16
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Granted: 1968-05-21
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Expires: 1984-03-16
Abstract
No abstract record available.
Inventors
- 👤 Charles Zuiak
- 👤 Jean Rouet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:17
CPC Classifications
A; A61; A61Q; A61Q9/00; A61Q9/04; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/30; A61K8/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A PROCESS FOR REMOVING HAIR FROM HUMAN SKIN COMPRISING APPLYING TO THE HAIR TO BE REMOVED AN EFFECTIVE AMOUNT OF A DEPILATORY COMPOSITION COMPRISING DEPILATORY AMOUNTS OF LITHIUM CATIONS AND MERCAPTOCARBOXYLIC ANIONS SELECTED FROM THE GROUP CONSISTING OF THIOGLYCOLLIC, A-MERCAPTOPROPIONIC ACID AND B-MERCAPTOPROPINONIC ACID, SAID COMPOSITION HAVING A PH VALUE BETWEEN ABOUT 11 AND 12.5.
Claim 2
Dependent Claim
55 words
A PROCESS FOR REMOVING HAIR FROM HUMAN SKIN COMPRISING APPLYING TO THE HAIR TO BE REMOVED AN EFFECTIVE AMOUNT OF A DEPILATORY COMPOSITION COMPRISING DEPILATORY AMOUNTS OF LITHIUM CATIONS AND MERCAPTOCARBOXYLIC ANIONS SELECTED FROM THE GROUP CONSISTING OF THIOGLYCOLLIC, A-MERCAPTOPROPIONIC ACID AND B-MERCAPTOPROPINONIC ACID, SAID COMPOSITION HAVING A PH VALUE BETWEEN ABOUT 11 AND 12.5.
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) | 1971-05-21 | 1971-11-20 | 1972-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-21 | 1975-11-20 | 1976-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-21 | 1979-11-20 | 1980-05-21 | $7700.00 | Window Closed / Lapsed |