Cosmetic preparation incorporating stabilized ascorbic acid

Patent 4983382 Issued on January 8, 1991. Estimated Expiration Date:

December 23, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

2623002

3322626

Topical compositions containing an allantoin ascorbic acid complex
Patent #: 3954989
Issued on: 05/04/1976
Inventor: Mecca

Oral composition for improving oral health
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Treatment of herpes simplex
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Inventor: Parkinson

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Patent #: 4668516
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Emulsion cosmetic stably containing vitamin C Patent #: 4818521
Issued on: 04/04/1989
Inventor: Tamabuchi

Inventors

Application

No. 291424 filed on 12/23/1988

US Classes:

424/62, BLEACH FOR LIVE HAIR OR SKIN (E.G., PEROXIDES, ETC.)514/474, Ascorbic acid or derivative (e.g., vitamin C, etc.)514/947, Topical application514/970CONTAINING DESIGNATED INGREDIENT TO STABILIZE AN ACTIVE INGREDIENT

Examiners

Primary: Cashion, Merrell C. Jr.
Assistant: Rucker, Susan S.

Attorney, Agent or Firm

Todd; William G.

Foreign Patent References

1922653 DE. 11/13/1970
619065 GB 03/13/2012

International Class

A61K 007/480

Abstract

Stable cosmetic compositions comprising ascorbic acid dissolved in at least two co-solvents, one of which comprises water, the other of which comprises an organic solvent miscible with water, or a blend of water miscible organic solvents. The compositions are adapted to be topically applied to the skin to impart appearance benefits thereto.