US4505918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
4-[2-Pyridinylthio(oxy or amino)methyl]-1H-imidazoles and derivatives
Assignee: Merck and Co Inc
•
Filing: 1982-11-08
•
Granted: 1985-03-19
•
Expires: 2002-11-08
Abstract
Abstract 4-[2-Pyridinylthio(oxy or amino)methyl]-1H-imidazoles and derivatives and acid addition salts thereof are selective central-adrenergic receptor agonists and thereby useful as antihypertensives.
Inventors
- 👤 Joel R. Huff
- 👤 Walfred S. Saari
- 👤 John J. Baldwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:40
CPC Classifications
C; C07; C07D; C07D401/00; C07D401/02; C07D401/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
12 words
A compound of structural formula ##STR12## or a pharmaceutically acceptable salt thereof.
Claim 2
Dependent Claim
12 words
A compound of structural formula ##STR12## or a pharmaceutically acceptable salt thereof.
Claim 3
Dependent Claim
24 words
An antihypertensive pharmaceutical formulation comprising a pharmaceutical carrier and an effective amount of the compound of claim 1 or a pharmaceutically acceptable salt thereof.
Claim 4
Dependent Claim
32 words
A method of treating hypertension comprising the administration to a patient in need of such treatment of an effective amount of the compound of claim 1 or a pharmaceutically acceptable salt thereof.
References Cited (Backward Citations)
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US4046896A
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US4078063A
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US4381302A
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US4442103A
Cited
US4456604A
Cited
US4376772A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-03-18 | 1988-09-17 | 1989-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-03-18 | 1992-09-17 | 1993-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-03-18 | 1996-09-17 | 1997-03-19 | $7700.00 | Window Closed / Lapsed |