Patent US3574749A successfully refreshed from Google Patents.
US3574749A
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US
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1-(4-amidophenoxy)-3-amino-2-propanol derivatives
Assignee: Imperial Chemical Industries Ltd
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Filing: 1967-10-23
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Granted: 1971-04-13
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Expires: 1987-10-23
Abstract
Abstract THE DISCLOSURE RELATES TO 1-ACYLAMINO-3-AMINO-2-PRO PANOL DERIVATIVES, PROCESSES FOR THEIR MANUFACTURE AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM. THE SAID COMPOUNDS POSSES B-ADRENERGIC BLOCKING ACTIVITY AND ARE USEFUL IN THE TREATMENT OF HEART DISEASES. REPRESENTATIVE OF THE COMPOUNDS DISCLOSED IS 1-(2-ALLYLOXY-4-PROPIONAMIDOPHENOXY)-3-ISOPROPYLAMINO-2-PROPANOL.
Inventors
- 👤 Ralph Howe
- 👤 Leslie Harold Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:49
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/12; C07D303/18; C07D303/20; C07D303/22; A; A61; A61P; A61P25/00; A61P25/02; A61P35/00; A61P9/00; A61P9/06; A61P9/08; A61P9/10; A61P9/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1974-04-12 | 1974-10-12 | 1975-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-12 | 1978-10-12 | 1979-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-12 | 1982-10-12 | 1983-04-13 | $7700.00 | Window Closed / Lapsed |