US3736944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions and procedures for effecting a permanent wave or set in the hair
Assignee: L'Oréal SA
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Filing: 1971-12-17
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Granted: 1973-06-05
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Expires: 1991-12-17
Abstract
Abstract A composition for use in the neutralizing stage of a permanent wave operation. The active component of the composition contains an GROUP WHERE R is hydrogen or lower alkyl. The neutralizing composition can be used with an oxidant which reacts with the active component to increase the temperature of neutralization. The neutralizing composition may be applied to the hair before or after it is placed on rollers.
Inventors
- 👤 G Ghilardi
- 👤 G Kalopissis
- 👤 Beaulieu H De
- 👤 J Abegg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:16
CPC Classifications
A; A61; A61Q; A61Q5/00; A61Q5/04; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/42; A61K8/46; A61K8/72; A61K8/84; A61K2800/00; A61K2800/80; A61K2800/95
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
30 words
A process according to claim 1 in which the neutralizing mixture is applied on the hair after it has been put on permanent wave rollers, the hair being thereafter dried.
Claim 2
Dependent Claim
32 words
A process according to claim 1 in which the neutralizing mixture is put on the hair before it is put on rollers after which the hair is put on rollers and dried.
Claim 3
Dependent Claim
25 words
A process according to claim 1 where the hair is soaked, after previously being reduced, with a solution containing said active compound where Y represents
Claim 4
Dependent Claim
44 words
A process according to claim 4 characterized by the fact that the head of hair is acidified in the case where the oxido-reduction reaction contains a solution having a neutral pH or basic for the purpose of effecting the polymerization of said active compound.
References Cited (Backward Citations)
US3349000A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-04 | 1976-12-04 | 1977-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-04 | 1980-12-04 | 1981-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-04 | 1984-12-04 | 1985-06-05 | $7700.00 | Window Closed / Lapsed |