Patent US5443441A successfully refreshed from Google Patents.
US5443441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for transdermal delivery of cosmetic compositions
Assignee: Individual
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Filing: 1993-11-12
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Granted: 1995-08-22
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Expires: 2013-11-12
Abstract
Abstract An apparatus for enhancing transdermal delivery of cosmetic compositions including an electrical power source for generating varying levels of AC and/or DC current. The power source is arranged to be in electrically cooperative relationship with a cosmetic composition applied to a person and includes at least one positive electrode, and one negative electrode, and further includes current varying means for varying the output of current from the power source in a range of about. 0.1 mA to about 10 mA. A method for enhancing transdermal delivery of a cosmetic composition to the face of a person is also disclosed.
Inventors
- 👤 Anne Marie De Claviere
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:29
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/18; A61N1/20; A61N1/30; A61N1/32; A61N1/325
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
196 words
An apparatus for transdermal delivery of cosmetic compositions, which comprises: (a) an electrical power source for generating a predetermined level of current, said power source comprising at least one positive electrode, and one negative electrode, said power source further comprising current varying means for varying the output of current from said power source in a range of about 0.1 mA to about 10 mA.; (b) a mask configured to be placed on the face of a person, said mask configured and dimensioned for receiving said cosmetic composition therein, said mask having a selectively permeable membrane portion disposed to lie between said cosmetic composition and the face of a person and wherein said mask is formed with a plurality of holes therethrough so that when said mask is placed on the face of a person, said holes will be positioned substantially over the nostrils, eyes and mouth of the person; (c) means for connecting said positive electrode to said mask so that said cosmetic composition in said mask is in electrical cooperation with said electrical power source; and (d) means for connecting said negative electrode to an area of skin not having a cosmetic composition applied thereto.
Claim 2
Independent Claim
196 words
An apparatus for transdermal delivery of cosmetic compositions, which comprises: (a) an electrical power source for generating a predetermined level of current, said power source comprising at least one positive electrode, and one negative electrode, said power source further comprising current varying means for varying the output of current from said power source in a range of about 0.1 mA to about 10 mA.; (b) a mask configured to be placed on the face of a person, said mask configured and dimensioned for receiving said cosmetic composition therein, said mask having a selectively permeable membrane portion disposed to lie between said cosmetic composition and the face of a person and wherein said mask is formed with a plurality of holes therethrough so that when said mask is placed on the face of a person, said holes will be positioned substantially over the nostrils, eyes and mouth of the person; (c) means for connecting said positive electrode to said mask so that said cosmetic composition in said mask is in electrical cooperation with said electrical power source; and (d) means for connecting said negative electrode to an area of skin not having a cosmetic composition applied thereto.
Claim 3
Dependent Claim
22 words
The apparatus according to claim 1, wherein the power source further comprises waveform selection means for generating clipped, and inverted AC signals.
Claim 4
Dependent Claim
16 words
The apparatus according to claim 1, wherein the apparatus is configured to operate on DC power.
Claim 5
Dependent Claim
33 words
The apparatus according to claim 1, wherein said selectively permeable membrane is permeable to said cosmetic composition when said cosmetic composition has an electric charge applied thereon which exceeds a specified threshold value.
Claim 6
Dependent Claim
11 words
The apparatus according to claim 1, wherein said mask is electroconductive.
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) | 1998-08-21 | 1999-02-20 | 1999-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-08-21 | 2003-02-20 | 2003-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-08-21 | 2007-02-20 | 2007-08-22 | $7700.00 | Window Closed / Lapsed |