US3786061A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pyridyl-trifluoromethylimidazoles
Assignee: Merck and Co Inc
•
Filing: 1972-06-21
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Granted: 1974-01-15
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Expires: 1992-06-21
Abstract
Abstract 4(5)-TRIFLUOMETHYLIMIDAZOLES HAVING OPTIONAL SUBSTITUENTS IN THE 1 AND 2 POSITIONS ARE PROVIDED. THE NOVEL 4(5)-TRIFLUOROMETHYLIMIDAZOLES ARE PREPARED BY REACTING A 1,1-DIHALO-3,3,3-TRIFLUOROACETONE COMPOUND WITH AN APPROPRIATE CARBOXALDEHYDE AND AMMONIA. THE 4(5)-TRIFLUOROMETHYLIMIDAZOLES ARE USEFUL AS ANTI-GOUT AND ANTI-HYPERURICEMIC AGENTS.
Inventors
- 👤 F Novello
- 👤 J Baldwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:58
CPC Classifications
C; C07; C07D; C07D233/00; C07D233/54; C07D233/64; C07D233/66; C07D233/91; C07D233/92; C07D233/93; C07D233/94; C07D233/95
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) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |