US2983569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deformation of keratinous fibers with sulfite-borohydride composition
Assignee: L'Oréal SA
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Filing: 1958-05-19
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Granted: 1961-05-09
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Expires: 1978-05-19
Abstract
No abstract record available.
Inventors
- 👤 Charle Roger
- 👤 Kalopissis Gregoire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:24
CPC Classifications
A; A61; A61Q; A61Q5/00; A61Q5/04; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/23
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A METHOD OF PERMANENTLY RESHAPING HUMAN HAIR AND OTHER KERATINOUS FIBERS WHICH COMPRISES HOLDING THE FIBERS IN DESIRED SHAPE WHILE THEY ARE WETTED WITH A HAIRSOFTENING SOLUTION ADJUSTED TO A PH-VALUE WITHIN THE RANGE OF ABOUT 9.0 TO 10.0 AND CONTAINING AT LEAST ONE WATER-SOLUBLE SULPHITE AND AT LEAST ONE ALKALI METAL BOROHYDRIDE OF A MOLECULAR WEIGHT HIGHER THAN 35 IN A RATIO OF ONE MOLE OF SULPHITE TO 1-20 MOLES OF BOROHYDRIDE, THE TOTAL QUANTITY OF BOTH REACTANTS BEING SUCH AS TO AMOUNT TO A CONCENTRATION OF ACTIVE HYDROGEN THEORETICALLY AVAILABLE OF NOT MORE THAN 2 GRAMS PER 100 CC. OF THE HAIRSOFTENING SOLUTION, ALLOWING SAID SOLUTION TO REMAIN IN CONTACT WITH THE FIBERS FOR AT LEAST 15 MINUTES, AND THEREAFTER RINSING, SETTING BY TREATING WITH AN OXIDIZING AGENT, RELEASING AND DRYING THE FIBERS.
Claim 2
Independent Claim
135 words
A METHOD OF PERMANENTLY RESHAPING HUMAN HAIR AND OTHER KERATINOUS FIBERS WHICH COMPRISES HOLDING THE FIBERS IN DESIRED SHAPE WHILE THEY ARE WETTED WITH A HAIRSOFTENING SOLUTION ADJUSTED TO A PH-VALUE WITHIN THE RANGE OF ABOUT 9.0 TO 10.0 AND CONTAINING AT LEAST ONE WATER-SOLUBLE SULPHITE AND AT LEAST ONE ALKALI METAL BOROHYDRIDE OF A MOLECULAR WEIGHT HIGHER THAN 35 IN A RATIO OF ONE MOLE OF SULPHITE TO 1-20 MOLES OF BOROHYDRIDE, THE TOTAL QUANTITY OF BOTH REACTANTS BEING SUCH AS TO AMOUNT TO A CONCENTRATION OF ACTIVE HYDROGEN THEORETICALLY AVAILABLE OF NOT MORE THAN 2 GRAMS PER 100 CC. OF THE HAIRSOFTENING SOLUTION, ALLOWING SAID SOLUTION TO REMAIN IN CONTACT WITH THE FIBERS FOR AT LEAST 15 MINUTES, AND THEREAFTER RINSING, SETTING BY TREATING WITH AN OXIDIZING AGENT, RELEASING AND DRYING THE FIBERS.
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) | 1964-05-08 | 1964-11-07 | 1965-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-08 | 1968-11-07 | 1969-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-08 | 1972-11-07 | 1973-05-09 | $7700.00 | Window Closed / Lapsed |