US4244948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Medical use of esters of acetylsalicylic acid to treat acne
Assignee: Allergan Inc
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Filing: 1979-05-07
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Granted: 1981-01-13
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Expires: 1999-05-07
Abstract
Abstract A method for topically treating inflammation in humans or animals by administering to the inflamed area a therapeutically effective amount of an alkyl- or aralkyl-substituted acetylsalicylic acid such as methyl-, ethyl-, allyl- or benzyl acetylsalicylate. The method may also be used to treat acne by applying a therapeutically effective amount of the acetylsalicylate ester to the affected skin in a human having skin affected by acne.
Inventors
- 👤 Malcolm P. Boghosian
- 👤 Robert T. Koda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:50
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/60
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
44 words
A method for treating acne in a human having skin affected thereby comprising administering topically to the affected skin a therapeutically effective amount of an ester of acetylsalicylic acid selected from the group consisting of methyl acetylsalicylate, ethyl acetylsalicylate, allyl acetylsalicylate and benzyl acetylsalicylate.
Claim 2
Independent Claim
44 words
A method for treating acne in a human having skin affected thereby comprising administering topically to the affected skin a therapeutically effective amount of an ester of acetylsalicylic acid selected from the group consisting of methyl acetylsalicylate, ethyl acetylsalicylate, allyl acetylsalicylate and benzyl acetylsalicylate.
Claim 3
Dependent Claim
35 words
The method of claim 1 where the ester of acetylsalicylic acid is administered as a composition comprising about 0.1 to about 10 percent by weight of said ester in admixture with a pharmaceutically acceptable carrier.
Claim 4
Dependent Claim
25 words
The method of claim 2 wherein said composition is in the form selected from the group consisting of a solution, lotion, ointment, emulsion and gel.
Claim 5
Independent Claim
34 words
A method for treating acne in humans comprising administering topically to the affected skin a composition comprising about 0.1% to about 10% by weight of ethyl acetylsalicylate in admixture with a pharmaceutically acceptable carrier.
Claim 6
Independent Claim
34 words
A method for treating acne in humans comprising administering topically to the affected skin a composition comprising about 0.1% to about 10% by weight of ethyl acetylsalicylate in admixture with a pharmaceutically acceptable carrier.
References Cited (Backward Citations)
US4126681A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-01-13 | 1984-07-14 | 1985-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-13 | 1988-07-14 | 1989-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-13 | 1992-07-14 | 1993-01-13 | $7700.00 | Window Closed / Lapsed |