Patent US5000686A successfully refreshed from Google Patents.
Patent US4007204A successfully refreshed from Google Patents.
US4007204A
Expired / Lapsed
US
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Benzothiophene compounds and the production and use thereof
Assignee: Labaz SA
•
Filing: 1975-04-21
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Granted: 1977-02-08
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Expires: 1995-04-21
Abstract
Abstract Novel benzo[b]thiophene derivatives corresponding to the general formula: ##STR1## and the pharmaceutically acceptable acid addition salts thereof, wherein R represents a branched- or straight-chain alkyl group containing from 1 to 4 carbon atoms, or a cyclohexyl group, n is an integer in the range of from 3 to 6 inclusive, and Am represents a dimethylamino, diethylamino, di-n-propylamino or di-n-butylamino group. These derivatives are useful for the treatment of pathological conditions of the heart and in particular angina pectoris.
Inventors
- 👤 Marcel Descamps
- 👤 Jean Gubin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:38
CPC Classifications
C; C07; C07D; C07D333/00; C07D333/50; C07D333/52; C07D333/62; C07D333/68; C07D333/54; C07D333/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
1 words
2-Methyl-3-(3,5-dimethyl-4-γ-di-n-butylaminopropoxy-benzoyl)-benzo[b]thiophene.
Claim 2
Dependent Claim
1 words
2-Methyl-3-(3,5-dimethyl-4-γ-di-n-butylaminopropoxy-benzoyl)-benzo[b]thiophene.
References Cited (Backward Citations)
US3658845A
Cited
US3706747A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-02-08 | 1980-08-09 | 1981-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-08 | 1984-08-09 | 1985-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-08 | 1988-08-09 | 1989-02-08 | $7700.00 | Window Closed / Lapsed |