Patent US4082844A successfully refreshed from Google Patents.
US4082844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
6-chloro-2-(1-piperazinyl)pyrazine
Assignee: Merck and Co Inc
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Filing: 1976-06-15
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Granted: 1978-04-04
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Expires: 1996-06-15
Abstract
Abstract The compound 6-chloro-2-(1'-piperazinyl)pyrazine, its N-oxides and acid-addition salts are disclosed having pharmacological activity as anorexic agents.
Inventors
- 👤 William C. Lumma, Jr.
- 👤 Walfred S. Saari
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:19
CPC Classifications
C; C07; C07D; C07D241/00; C07D241/02; C07D241/10; C07D241/14; C07D241/24; C07D241/16
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
9 words
6-Chloro-2-(1'-piperazinyl)pyrazine, or N-oxide or a pharmaceutically acceptable salt thereof.
Claim 2
Dependent Claim
9 words
6-Chloro-2-(1'-piperazinyl)pyrazine, or N-oxide or a pharmaceutically acceptable salt thereof.
Claim 3
Dependent Claim
22 words
An anorexic pharmaceutical composition comprising a pharmaceutical carrier and an effective amount of 6-chloro-2-(1'-piperazinyl)pyrazine or N-oxide or a pharmaceutically acceptable salt thereof.
Claim 4
Dependent Claim
22 words
An anorexic pharmaceutical composition comprising a pharmaceutical carrier and an effective amount of 6-chloro-2-(1'-piperazinyl)pyrazine or N-oxide or a pharmaceutically acceptable salt thereof.
Claim 5
Independent Claim
31 words
A method of producing an anorexic effect which comprises administering to a patient in need of such treatment an effective amount of 6-chloro-2-(1'-piperazinyl)pyrazine or N-oxide, or a pharmaceutically acceptable salt thereof.
Claim 6
Independent Claim
31 words
A method of producing an anorexic effect which comprises administering to a patient in need of such treatment an effective amount of 6-chloro-2-(1'-piperazinyl)pyrazine or N-oxide, or a pharmaceutically acceptable salt thereof.
References Cited (Backward Citations)
US2606906A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-04-03 | 1981-10-03 | 1982-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-03 | 1985-10-03 | 1986-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-03 | 1989-10-03 | 1990-04-04 | $7700.00 | Window Closed / Lapsed |