US4915940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film-formation-type antifungal preparation
Assignee: Shionogi and Co Ltd
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Filing: 1988-11-15
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Granted: 1990-04-10
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Expires: 2008-11-15
Abstract
Abstract Film-formation-type antifungal preparations for external application, consisting essentially of about 0.1% to about 1.5% of tolnaphtate, about 10% to about 20% of a dimethylaminoethyl methacrylate-methacrylic acid ester copolymer and 0.5% to about 10% of a medium chain fatty acid ester in an alcoholic solvent but containing practically no water.
Inventors
- 👤 Izumi Saitoh
- 👤 Kaori Ikeda
- 👤 Yoshio Doi
- 👤 Shohei Egawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:44
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/21; A61K31/27; A61K47/00; A61K9/00; A61K9/70; A61K9/7015; A61P; A61P31/00; A61P31/04; A61P31/10
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
46 words
A film-formation-antifungal preparation consisting essentially of about 0.1% to about 1.5% of tolnapbtate. about 10% to about 20% of a dimethylaminoethyl methacrylate-methacrylic acid ester copolymer, and 0.5% to about 10% of a medium chain fatty acid ester in an alcoholic solvent but containing practically no water.
Claim 2
Dependent Claim
46 words
A film-formation-antifungal preparation consisting essentially of about 0.1% to about 1.5% of tolnapbtate. about 10% to about 20% of a dimethylaminoethyl methacrylate-methacrylic acid ester copolymer, and 0.5% to about 10% of a medium chain fatty acid ester in an alcoholic solvent but containing practically no water.
Claim 3
Dependent Claim
17 words
The film-formation-antifungal preparation claimed in claim 1, wherein said medium chain fatty acid ester is tetraglyceryl monocaprate.
Claim 4
Dependent Claim
18 words
The film-formation-antifungal preparation claimed in claim 1, further containing about 0.1% to about 5% of a thickening agent.
Claim 5
Dependent Claim
15 words
The film-formation-antifungal preparation claimed in claim 1, wherein said alcoholic solvent is ethanol or isopropanol.
Claim 6
Dependent Claim
19 words
The film-formation-antifungal preparation claimed in claim 3, wherein said thickening agent is cthyl cellulose, hydroxypropyl cellulose, or hydroxypropylmethyl cellulose.
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) | 1993-04-09 | 1993-10-09 | 1994-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-09 | 1997-10-09 | 1998-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-09 | 2001-10-09 | 2002-04-10 | $7700.00 | Window Closed / Lapsed |