Patent US5152983A successfully refreshed from Google Patents.
US5152983A
Expired / Lapsed
US
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Sunscreen compositions comprising pongomol
Assignee: Givaudan Nederland Services BV
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Filing: 1990-11-09
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Granted: 1992-10-06
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Expires: 2010-11-09
Abstract
Abstract A sunscreen composition suitable for topical application to human skin or hair, to provide protection from excessive exposure to ultra-violet rays, comprises: i) an effective amount of a substituted 1,3-diketone having an ultra-violet absorption band within the range of from 250 to 500 nm, and an extinction coefficient E of from 5,000 to 70,000; and ii) a physiologically acceptable vehicle for the substituted 1,3-diketone.
Inventors
- 👤 Mayara E. N. Nambudiry
- 👤 Visweswaria N. Collur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:49
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/33; A61K8/35; A61K8/49; A61K8/4973; A61K8/96; A61K8/97; A61K8/9783; A61K8/9789; A61K8/9794; A61Q; A61Q17/00; A61Q17/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
48 words
A sunscreen composition suitable for topical application to human skin or hair to provide protection from excessive exposure to ultra-violet rays, which comprises: (i) an effective amount of a substituted 1,3-diketone which is 1,3-propanedione, 1-(4-methoxy-5-benzofuranyl)-3-phenyl having the structure: ##STR8## (ii) a physiologically acceptable vehicle for the substituted 1,3-diketone.
Claim 2
Dependent Claim
48 words
A sunscreen composition suitable for topical application to human skin or hair to provide protection from excessive exposure to ultra-violet rays, which comprises: (i) an effective amount of a substituted 1,3-diketone which is 1,3-propanedione, 1-(4-methoxy-5-benzofuranyl)-3-phenyl having the structure: ##STR8## (ii) a physiologically acceptable vehicle for the substituted 1,3-diketone.
Claim 3
Dependent Claim
20 words
A composition according to claims 1, in which the 1,3-diketone forms from 0.01 to 15% by weight of the composition.
Claim 4
Dependent Claim
16 words
A composition according to claim 1, which is in the form of a cream or lotion.
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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) | 1995-10-06 | 1996-04-06 | 1996-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-10-06 | 2000-04-06 | 2000-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-10-06 | 2004-04-06 | 2004-10-06 | $7700.00 | Window Closed / Lapsed |