US4391809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods for treating psoriasis
Assignee: Warner Lambert Co LLC
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Filing: 1980-11-13
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Granted: 1983-07-05
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Expires: 2000-11-13
Abstract
Abstract Methods for treating psoriasis by administering 2,4-diamino-5-methyl-6-[(3,4,5-trimethoxyanilino)methyl]-quinazoline, 2,4-diamino-5-chloro-6-[(3,4-dichloroanilino)methyl]-quinazoline or a pharmaceutically acceptable acid-addition salt thereof.
Inventors
- 👤 Edward F. Elslager
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:27
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/33; A61K31/395; A61K31/495; A61K31/505
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
30 words
A method for treating psoriasis in mammals which comprises administering an antipsoriatic-effective amount of 2,4-diamino-5-methyl-6-[(3,4,5-trimethoxyanilino)methyl]quinazoline, 2,4-diamino-5-chloro-6-[(3,4-dichloroanilino)methyl]quinazoline or a pharmaceutically acceptable salt thereof, to a mammal in need of said treatment.
Claim 2
Independent Claim
30 words
A method for treating psoriasis in mammals which comprises administering an antipsoriatic-effective amount of 2,4-diamino-5-methyl-6-[(3,4,5-trimethoxyanilino)methyl]quinazoline, 2,4-diamino-5-chloro-6-[(3,4-dichloroanilino)methyl]quinazoline or a pharmaceutically acceptable salt thereof, to a mammal in need of said treatment.
Claim 3
Dependent Claim
20 words
The method of claim 1 wherein 0.07 mg to 7.1 mg/kg of weight per day of said compound is administered.
Claim 4
Dependent Claim
11 words
The method of claim 1 wherein said compound is 2,4-diamino-5-methyl-6-[(3,4,5-trimethoxyanilino)methyl]quinazoline monoacetate.
Claim 5
Dependent Claim
11 words
The method of claim 1 wherein said compound is 2,4-diamino-5-chloro-6-[(3,4-dichloroanilino)methyl]quinazoline monoacetate.
Claim 6
Dependent Claim
12 words
The method defined in claim 1 wherein said mammal is a human.
References Cited (Backward Citations)
GB1345502A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-07-04 | 1987-01-03 | 1987-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-04 | 1991-01-03 | 1991-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-04 | 1995-01-03 | 1995-07-05 | $7700.00 | Window Closed / Lapsed |