US3954393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hair dyeing composition containing bismuth citrate, triethanolamine and sulfur
Assignee: Combe Inc
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Filing: 1973-08-29
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Granted: 1976-05-04
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Expires: 1993-08-29
Abstract
Abstract A composition for dyeing hair comprising the product formed by contacting bismuth citrate, triethanolamine and sulfur in the presence of water. The product is stable in solution; in use the product is applied to human hair, as on the scalp, and thereupon effects a darkening of the hair.
Inventors
- 👤 Herbert Lapidus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:16
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/23; A61K8/30; A61K8/33; A61K8/36; A61K8/365; A61Q; A61Q5/00; A61Q5/06; A61Q5/065
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
25 words
A hair dyeing composition comprising an effective amount of sulfur and the water soluble reaction product of bismuth citrate and triethanolamine in an aqueous vehicle.
Claim 2
Dependent Claim
25 words
A hair dyeing composition comprising an effective amount of sulfur and the water soluble reaction product of bismuth citrate and triethanolamine in an aqueous vehicle.
Claim 3
Dependent Claim
31 words
A hair dyeing composition comprising an aqueous vehicle containing 0.25 parts of sulfur, and an effective amount of the product formed by reacting 0.25 parts bismuth citrate with 3.0 parts triethanolamine.
Claim 4
Dependent Claim
31 words
A hair dyeing composition comprising an aqueous vehicle containing 0.25 parts of sulfur, and an effective amount of the product formed by reacting 0.25 parts bismuth citrate with 3.0 parts triethanolamine.
Claim 5
Dependent Claim
46 words
A hair dyeing composition comprising in percent by weight 0.25% bismuth citrate, 10.00% propylene glycol, 3.00% triethanolamine (98%), 0.50% of the condensation product of iso octyl phenyl polyethoxy ethanol with 9-10 mols of ethylene oxide, 10.00% ethyl alcohol, 0.32% polyvinyl pyrrolidone, 0.25% sulfur and 75.68% water.
Claim 6
Dependent Claim
46 words
A hair dyeing composition comprising in percent by weight 0.25% bismuth citrate, 10.00% propylene glycol, 3.00% triethanolamine (98%), 0.50% of the condensation product of iso octyl phenyl polyethoxy ethanol with 9-10 mols of ethylene oxide, 10.00% ethyl alcohol, 0.32% polyvinyl pyrrolidone, 0.25% sulfur and 75.68% water.
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) | 1979-05-04 | 1979-11-03 | 1980-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-04 | 1983-11-03 | 1984-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-04 | 1987-11-03 | 1988-05-04 | $7700.00 | Window Closed / Lapsed |