Patent US4173038A successfully refreshed from Google Patents.
Patent US3830933A successfully refreshed from Google Patents.
US3830933A
Expired / Lapsed
US
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1-substittuted biguanides as antihypertensive agents
Assignee: William H Rorer Inc
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Filing: 1971-05-12
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Granted: 1974-08-20
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Expires: 1991-05-12
Abstract
Abstract 1 - ARYL AND ARALKYL BIGUANIDE COMPOUNDS POSSESS USEFUL GASTRIC ANTI-SECRETORY AND SPASMOLYTIC PROPERTIES. COMPOUNDS OF THIS TYPE WHICH ALSO DISPLAY ANTI-HYPERTIES. SIVE AND CNS DEPRESSANT PROPERTIES ARE ALSO DISCLOSED.
Inventors
- 👤 J Diamond
- 👤 G Douglas
- 👤 B Burns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:51
CPC Classifications
C; C07; C07C; C07C311/00; C07C311/30; C07C311/45; C07C311/47; C07C279/00; C07C279/20; C07C279/24; C07C279/26
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) | 1977-08-19 | 1978-02-18 | 1978-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-19 | 1982-02-18 | 1982-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-19 | 1986-02-18 | 1986-08-20 | $7700.00 | Window Closed / Lapsed |