Patent US3988437A successfully refreshed from Google Patents.
US3988437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suntan composition containing fluorescent compounds
Assignee: Research Corp
•
Filing: 1974-03-25
•
Granted: 1976-10-26
•
Expires: 1994-03-25
Abstract
Abstract A suntan composition adapted for application to the human skin which protects against burning and promotes tanning comprising a carrier having distributed therein a fluorescent compound which is non-toxic to the human skin and which absorbs ultraviolet radiation of wave lengths erythemal to the human skin below about 3150 A and converts the absorbed radiation into fluorescent emission having wavelengths which non-erythemally tan the human skin in the range of 3150 to 4000 A.
Inventors
- 👤 Hugh Bradner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:30
CPC Classifications
A; A61; A61Q; A61Q19/00; A61Q19/04; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/31; A61K8/49; A61K8/4906; A61K8/4913; A61K8/492; A61Q17/00; A61Q17/04; A61K2800/00; A61K2800/40; A61K2800/42; A61K2800/43; A61K2800/434
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
145 words
A composition adapted for application to the human skin which provides substantial protection against erythemal radiation and promotes non-erythemal tanning which consists essentially of an inert, cosmetic carrier suitable for application to the human skin having distributed therein from about 1 to about 25% by weight of a fluorescent compound which is non-toxic to the human skin and which absorbs ultra-violet radiation of wavelengths erythemal to the human skin between about 2900 A and about 3150 A and which converts said absorbed radiation into fluorescent emission having wavelengths which non-erythemally tan the human skin in the range of between about 3150 A and about 4000 A, said fluorescent compound having one of the structural formulae: ##SPC2## R is hydrogen, lower alkyl or lower alkoxy; x is an integer from 1 to 6; y is 1 or 2; and, R 1 is hydrogen or lower alkyl.
Claim 2
Dependent Claim
145 words
A composition adapted for application to the human skin which provides substantial protection against erythemal radiation and promotes non-erythemal tanning which consists essentially of an inert, cosmetic carrier suitable for application to the human skin having distributed therein from about 1 to about 25% by weight of a fluorescent compound which is non-toxic to the human skin and which absorbs ultra-violet radiation of wavelengths erythemal to the human skin between about 2900 A and about 3150 A and which converts said absorbed radiation into fluorescent emission having wavelengths which non-erythemally tan the human skin in the range of between about 3150 A and about 4000 A, said fluorescent compound having one of the structural formulae: ##SPC2## R is hydrogen, lower alkyl or lower alkoxy; x is an integer from 1 to 6; y is 1 or 2; and, R 1 is hydrogen or lower alkyl.
Claim 3
Dependent Claim
11 words
The composition of claim 1 wherein said fluorescent compound is p-terphenyl.
Claim 4
Dependent Claim
30 words
The composition of claim 1 wherein said fluorescent compound is coated with or dissolved in an inert, atoxic medium which is permeable to both the absorbed and emitted ultra-violet radiation.
Claim 5
Dependent Claim
23 words
The composition of claim 1 wherein said carrier is a cosmetic composition which is substantially permeable to said absorbed and emitted ultra-violet radiation.
Claim 6
Dependent Claim
11 words
The composition of claim 1 wherein said carrier is a cream.
Claim 7
Dependent Claim
11 words
The composition of claim 1 wherein said carrier is a lotion.
Claim 8
Dependent Claim
14 words
The composition of claim 1 wherein said fluorescent compound is dissolved in said carrier.
Claim 9
Dependent Claim
14 words
The composition of claim 1 wherein said fluorescent compound is suspended in said carrier.
Claim 10
Dependent Claim
38 words
The composition of claim 1 wherein said fluorescent compound is microencapsulated in a material which will not permit contact of the fluorescent compound with the skin but which is permeable to the absorbed radiation and the re-fluoresced radiation.
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) | 1979-10-26 | 1980-04-26 | 1980-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-26 | 1984-04-26 | 1984-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-26 | 1988-04-26 | 1988-10-26 | $7700.00 | Window Closed / Lapsed |