US4559225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sunscreen composition
Assignee: Individual
•
Filing: 1984-02-16
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Granted: 1985-12-17
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Expires: 2004-02-16
Abstract
Abstract Water-proof sunscreen compositions, including a cellulosic polymer, a solvent, an ultra-violet sunscreening agent and an emollient are disclosed. The compositions when spread on the skin leave an elegant non-greasy, non-tacky film with a superior resistance to removal by water and which provide prolonged high level protection for human skin to ultraviolet radiation.
Inventors
- 👤 Robert G. Fourman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:44
CPC Classifications
A; A61; A61Q; A61Q17/00; A61Q17/04; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/33; A61K8/35; A61K8/40; A61K8/44; A61K8/445; A61K8/72; A61K8/73; A61K8/731
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
77 words
A water-proof sunscreen composition consisting essentially of from 0.1% to 10.0% by weight of cellulose ethyl ether having an ethoxy content of about 43%, from 10.0% to 90.0% ethanol, propanol and isopropanol; from 1.0% to 20.0% by weight of an ultraviolet absorbing sunscreening agent and from 5.0% to 60.0% by weight of an emollient material selected from the group consisting of hydrocarbon oils, hydrocarbon waxes, fatty acid esters of low molecular weight alcohols and volatile silicone fluids.
Claim 2
Dependent Claim
77 words
A water-proof sunscreen composition consisting essentially of from 0.1% to 10.0% by weight of cellulose ethyl ether having an ethoxy content of about 43%, from 10.0% to 90.0% ethanol, propanol and isopropanol; from 1.0% to 20.0% by weight of an ultraviolet absorbing sunscreening agent and from 5.0% to 60.0% by weight of an emollient material selected from the group consisting of hydrocarbon oils, hydrocarbon waxes, fatty acid esters of low molecular weight alcohols and volatile silicone fluids.
Claim 3
Dependent Claim
13 words
A sunscreen composition as claimed in claim 1 wherein said solvent is ethanol.
Claim 4
Dependent Claim
21 words
A sunscreen composition as claimed in claim 1 wherein said ultraviolet absorbing sunscreening agent is a mixture of octyl-dimethylpara-amino-benzoate and dioxybenzone.
Claim 5
Dependent Claim
13 words
A sunscreen composition as claimed in claim 1 wherein said emollient is cyclomethicone.
Claim 6
Dependent Claim
37 words
A sunscren composition as claimed in claim 4 which additionally contains from 1.0% to 10.0% by weight of a plasticizer selected from the group consisting of polymethyl siloxanes, polyphenylsiloxanes and mixtures of polymethyl siloxanes with trimethyl siloxysilicate.
References Cited (Backward Citations)
DE2109703A1
Cited
EP0055857A2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-12-16 | 1989-06-17 | 1989-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-16 | 1993-06-17 | 1993-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-16 | 1997-06-17 | 1997-12-17 | $7700.00 | Window Closed / Lapsed |