Patent US3891648A successfully refreshed from Google Patents.
US3891648A
Expired / Lapsed
US
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2-{8 (1,4-Benzodioxan)-2-yl{9 -acetamidines
Assignee: Labaz SA
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Filing: 1973-05-14
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Granted: 1975-06-24
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Expires: 1993-05-14
Abstract
Abstract WHEREIN Y represents an oxygen atom, CH2, CH-CH3, NH or NR wherein R is branched- or straight-chain lower alkyl containing 1-4 carbon atoms, lower hydroxyalkyl containing 1-4 carbon atoms, carbethoxy, phenyl, chlorophenyl, fluorophenyl, trifluoromethylphenyl, benzyl, or pyridyl, n represents an integer from 1 to 3 and m represents one of the integers 2 and 3, and the pharmaceutically acceptable acid addition salts thereof, exhibit antihypertensive and sedative effects. Compounds of the general formula:
Inventors
- 👤 Marcell Descamps
- 👤 Alex Areschka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:57
CPC Classifications
C; C07; C07D; C07D319/00; C07D319/10; C07D319/14; C07D319/16; C07D319/20
Claims Analysis
Total Claims: 6
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
8 words
2-((1,4-Benzodioxan)-2-yl)-N,N-(3-n-propyl-3-aza-pentamethylene)-acetamidine and its pharmaceutically acceptable acid addition salts.
Claim 4
Dependent Claim
8 words
2-((1,4-Benzodioxan)-2-yl)-N,N-(3-n-propyl-3-aza-pentamethylene)-acetamidine and its pharmaceutically acceptable acid addition salts.
Claim 5
Dependent Claim
8 words
2-((1,4-Benzodioxan)-2-yl)-N,N-(3-methyl-3-aza-pentamethylene)-acetamidine and its pharmaceutically acceptable acid addition salts.
Claim 6
Dependent Claim
8 words
2-((1,4-Benzodioxan)-2-yl)-N,N-(3-methyl-3-aza-pentamethylene)-acetamidine and its pharmaceutically acceptable acid addition salts.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-23 | 1978-12-23 | 1979-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-23 | 1982-12-23 | 1983-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-23 | 1986-12-23 | 1987-06-24 | $7700.00 | Window Closed / Lapsed |