Patent US5523090A successfully refreshed from Google Patents.
US5523090A
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Skin treatment composition
Assignee: Chesebrough Ponds USA Inc
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Filing: 1995-02-24
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Granted: 1996-06-04
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Expires: 2015-02-24
Abstract
Abstract Skin treatment compositions for improving skin strength and firmness and reducing signs of cellulite. The compositions contain a xanthine (e.g., caffeine or theophylline) and an inositol phosphoric acid, and/or alpha hydroxy acid. The ratio of the xanthine to the acid is in a specific range to maintain the xanthine in a solubilized state. A method of preventing or reducing the signs of cellulite by applying a mixture of an inositol phosphoric acid and an alpha hydroxy acid is also disclosed.
Inventors
- 👤 Alexander P. Znaiden
- 👤 Craig S. Slavtcheff
- 👤 Michael C. Cheney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:26
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/33; A61K8/36; A61K8/365; A61K8/49; A61K8/494; A61K8/4953; A61K8/55; A61Q; A61Q19/00; A61Q19/06
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
58 words
A skin treatment composition comprising: (i) a xanthine in an amount of from about 0.05% to about 20% wherein the xanthine is selected from the group consisting of caffeine, theophylline and mixtures thereof; (ii) phytic acid, wherein the weight ratio of xanthine to the acid is from about 2:1 to about 0.001:1; and (iii) a cosmetically acceptable vehicle.
Claim 2
Dependent Claim
58 words
A skin treatment composition comprising: (i) a xanthine in an amount of from about 0.05% to about 20% wherein the xanthine is selected from the group consisting of caffeine, theophylline and mixtures thereof; (ii) phytic acid, wherein the weight ratio of xanthine to the acid is from about 2:1 to about 0.001:1; and (iii) a cosmetically acceptable vehicle.
Claim 3
Dependent Claim
18 words
The composition of claim 1 wherein the pH of the composition is less than or equal to 5.5.
Claim 4
Dependent Claim
20 words
The composition of claim 1 wherein the pH of the composition is in the range of from 1.5 to 5.5.
Claim 5
Dependent Claim
17 words
The composition of claim 1 wherein the xanthine is present in the amount of at least 0.5%.
Claim 6
Dependent Claim
26 words
A method of treating the appearance of flaccid skin or the appearance of cellulite, the method comprising applying topically to skin the composition of claim 1.
Claim 7
Dependent Claim
78 words
A skin treatment composition comprising: (i) a xanthine in an amount of from about 0.05% to about 20%, wherein the xanthine is selected from the group consisting of caffeine, theophylline and mixtures thereof; (ii) an alpha hydroxy acid, wherein the weight ratio of xanthine to the acid is from about 2:1 to about 0.001:1, wherein the α-hydroxy acid is selected from the group consisting of lactic acid, glycolic acid and mixtures thereof; and (iii) a cosmetically acceptable vehicle.
Claim 8
Dependent Claim
78 words
A skin treatment composition comprising: (i) a xanthine in an amount of from about 0.05% to about 20%, wherein the xanthine is selected from the group consisting of caffeine, theophylline and mixtures thereof; (ii) an alpha hydroxy acid, wherein the weight ratio of xanthine to the acid is from about 2:1 to about 0.001:1, wherein the α-hydroxy acid is selected from the group consisting of lactic acid, glycolic acid and mixtures thereof; and (iii) a cosmetically acceptable vehicle.
Claim 9
Dependent Claim
18 words
The composition of claim 6 wherein the pH of the composition is less than or equal to 5.5.
Claim 10
Dependent Claim
20 words
The composition of claim 6 wherein the pH of the composition is in the range of from 1.5 to 5.5.
Claim 11
Dependent Claim
17 words
The composition of claim 6 wherein the xanthine is present in the amount of at least 0.5%.
Claim 12
Dependent Claim
9 words
The composition of claim 6 further comprising phytic acid.
Claim 13
Dependent Claim
23 words
A method of treating the appearance of flaccid skin or cellulite, the method comprising applying topically to skin the composition of claim 6.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-06-04 | 1999-12-04 | 2000-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-06-04 | 2003-12-04 | 2004-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-06-04 | 2007-12-04 | 2008-06-04 | $7700.00 | Window Closed / Lapsed |