US3562297A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkanolamine derivatives
Assignee: Imperial Chemical Industries Ltd
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Filing: 1967-10-16
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Granted: 1971-02-09
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Expires: 1987-10-16
Abstract
Abstract THE DISCLOSURE RELATES TO 1-ACYLAMINOPHENOXY-3-AMINO2-PROPANOL DERIVATIVES, PROCESSES FOR THEIR MANUFACTURE AND PHARMACEUTICAL COMPOSITION CONTAINING THEM. THE SAID COMPOUNDS POSSESS B-ADRENERGIC BLOCKING ACTIVITY AND ARE USEFUL IN THE TREATMENT OF HEART DISEASES. REPRESENTATIVE OF THE COMPOUNDS DISCLOSED IS 1-(4-PROPIONAMIDOPHENOXY)-3-ISOPROPYLAMINO-2-PROPANOL.
Inventors
- 👤 Ralph Howe
- 👤 Leslie Harold Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:13
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/12; C07D303/18; C07D303/20; C07D303/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |