US4456604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1-(3-Halo-2-pyridinyl) piperazine
Assignee: Merck and Co Inc
•
Filing: 1982-07-12
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Granted: 1984-06-26
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Expires: 2002-07-12
Abstract
Abstract 1-(3-Halo-2-pyridinyl)piperazine and its acid addition salts are selective alpha 2-adrenergic receptor antagonists and thereby useful as antidepressant agents and for treating sedation caused by antihypertensive therapy.
Inventors
- 👤 Walfred S. Saari
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:55
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/72; C07D213/74; C07D213/89
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
9 words
The compound 1-(3-fluoro-2-pyridinyl)piperazine or a pharmaceutically acceptable salt thereof.
Claim 2
Dependent Claim
9 words
The compound 1-(3-fluoro-2-pyridinyl)piperazine or a pharmaceutically acceptable salt thereof.
Claim 3
Dependent Claim
21 words
An antidepressant pharmaceutical formulation comprising a pharmaceutical carrier and an effective antidepressant amount of 1-(3-fluoro-2-pyridinyl)piperazine or a pharmaceutically acceptable salt thereof.
Claim 4
Dependent Claim
21 words
An antidepressant pharmaceutical formulation comprising a pharmaceutical carrier and an effective antidepressant amount of 1-(3-fluoro-2-pyridinyl)piperazine or a pharmaceutically acceptable salt thereof.
Claim 5
Independent Claim
29 words
A method of treating depression comprising the administration to a patient in need of such treatment of an effective antidepressant amount of 1-(3-fluoro-2-pyridinyl)piperazine or a pharmaceutically acceptable salt thereof.
Claim 6
Independent Claim
29 words
A method of treating depression comprising the administration to a patient in need of such treatment of an effective antidepressant amount of 1-(3-fluoro-2-pyridinyl)piperazine or a pharmaceutically acceptable salt thereof.
References Cited (Backward Citations)
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US2958694A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-06-26 | 1987-12-26 | 1988-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-26 | 1991-12-26 | 1992-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-26 | 1995-12-26 | 1996-06-26 | $7700.00 | Window Closed / Lapsed |