US3855249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
4-phenoxy-3-hydroxy-butyramidine derivatives
Assignee: Cephalon France SAS
•
Filing: 1972-08-09
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Granted: 1974-12-17
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Expires: 1992-08-09
Abstract
Abstract The compounds of the formula: IN WHICH R is hydrogen atom or C1-C5 alkyl and X is hydrogen or OH and their acid addition salts are useful in therapy, e.g., as anti-arrhythmia agents.
Inventors
- 👤 L Lafon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:59
CPC Classifications
C; C07; C07C; C07C259/00; C07C259/12; C07C259/14; C07D; C07D303/00; C07D303/02; C07D303/12; C07D303/18; C07D303/20; C07D303/24
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
26 words
A compound according to claim 1, in which the salt is a hydrochloride, hydrobromide, sulphate, phosphate, oxalate, fumarate, maleate, glutamate, cyclohexylsulphamate, aspartate, malate, benzoate, or ascorbate.
Claim 4
Dependent Claim
18 words
A compound according to claim 1, which is 4-(3,5-dimethoxy-phenoxy)-3-hydroxy-butyramidoxime or a salt thereof of a pharmaceutically acceptable acid.
References Cited (Backward Citations)
US3394181A
Cited
US3334137A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-16 | 1978-06-17 | 1978-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-16 | 1982-06-17 | 1982-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-16 | 1986-06-17 | 1986-12-17 | $7700.00 | Window Closed / Lapsed |