US3732308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1-alkylamino-3-(1,4-ethano-1,2,3,4-tetra-hydro-5-naphthoxy)-and-3-(5-benzo-norbornanoxy)-2-propanols and the salts thereof
Assignee: Pfizer Italia SRL
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Filing: 1970-07-24
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Granted: 1973-05-08
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Expires: 1990-07-24
Abstract
Abstract BASIC COMPOUNDS ARE DISCLOSED, AS FOR INSTANCE OF THE FORMULA: AND METHODS OF PREPARATION OF THESE COMPOUNDS, SUCH AS THE REACTION OF ISOPROPYLAMINE WITH 1-(1,4-ETHANO-1,2,3,4TETRAHYDRO-5-NAPHTHOXY) - PROPYL-283-ETHOXIDE. THE COMPOUNDS POSSESS ADRENERGIC BETA-RECEPTOR BLOCKING ACTIVITY. 1,4-ETHANONAPHTHALENE 5-((CH3)2-CH-NH-CH2-CH(-OH)-CH2-O-)-1,2,3,4-TETRAHYDRO-
Inventors
- 👤 F Lauria
- 👤 V Vecchietti
- 👤 M Bergamaschi
- 👤 R Tommasini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:02
CPC Classifications
C; C07; C07C; C07C49/00; C07C49/20; C07C49/255
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) | 1976-05-07 | 1976-11-06 | 1977-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-07 | 1980-11-06 | 1981-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-07 | 1984-11-06 | 1985-05-08 | $7700.00 | Window Closed / Lapsed |