US3836671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkanolamine derivatives for producing beta-adrenergic blockade
Assignee: Imperial Chemical Industries Ltd
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Filing: 1972-03-10
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Granted: 1974-09-17
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Expires: 1992-03-10
Abstract
Abstract 1-(ELECTRONEGATIVELY - SUBSTITUTED - ALKYL- OR ALKENYL PHENOXY)-3-ALKYLAMINO-2-PROPANOL DERIVATIVES, FOR EXAMPLE 1-P-CARBAMOYLMETHYLPHENOXY-3-ISOPROPYLAMINO-2-PROPANOL AND PHARMACEUTICAL COMOSITIONS CONTAINING THEM POSSESS B-ADRENERGIC BLOCKING ACTIVITY AND ARE USEFUL IN THE TREATMENT OF HEART DISEASES AND OTHER COMPLAINTS IN MAN.
Inventors
- 👤 A Barrett
- 👤 J Carter
- 👤 Count D Le
- 👤 C Squire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:05
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/12; C07D303/18; C07D303/20; C07D303/22; C07C; C07C233/00; C07C233/01; C07C233/02; C07C233/09; C07C233/34; C07C243/00; C07C243/24; C07C243/26; C07C243/30; C07C243/32; C07C255/00; C07C255/49; C07C255/53; C07C45/00; C07C45/61; C07C45/67; C07C45/68; C07C45/72; C07C45/74; C07D303/24
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) | 1977-09-16 | 1978-03-18 | 1978-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-16 | 1982-03-18 | 1982-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-16 | 1986-03-18 | 1986-09-17 | $7700.00 | Window Closed / Lapsed |