Patent US4506247A successfully refreshed from Google Patents.
Patent US3574842A successfully refreshed from Google Patents.
US3574842A
Expired / Lapsed
US
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Compositions of 4-(1,2,4-oxadiazole-3 or 5-yl)pyridinium salts and method of lowering blood sugar levels with same
Assignee: Wyeth Holdings LLC
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Filing: 1969-11-10
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Granted: 1971-04-13
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Expires: 1989-11-10
Abstract
Abstract COMPOSITIONS CONTAINING QUATERNARY 1,2,4-OXADIAZOLYLPYRIDINIUM SALTS ARE DESCIRBED ALONG WITH METHODS OF USING THE SAME. THESE ACTIVE COMPONENTS SHOW HYPOGLYCEMIC ACTIVITY EVIDENCED BY THEIR ABILITY TO LOWER BLOOD SUGAR LEVELS.
Inventors
- 👤 Victor John Bauer
- 👤 William Joseph Fanshawe
- 👤 Sidney Robert Safir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:46
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/33; A61K31/395; A61K31/435; A61K31/44; C; C07; C07D; C07D413/00; C07D413/02; C07D413/04
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) | 1974-04-12 | 1974-10-12 | 1975-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-12 | 1978-10-12 | 1979-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-12 | 1982-10-12 | 1983-04-13 | $7700.00 | Window Closed / Lapsed |