US3787324A
Expired / Lapsed
US
⏱️ 0.0 years remaining
4-hydroxy-3-(3-isoxazolocarbamyl)-2h-1,2-benzothiazine 1,dioxides and process for their production
Assignee: Warner Lambert Co LLC
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Filing: 1971-03-01
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Granted: 1974-01-22
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Expires: 1991-03-01
Abstract
Abstract COMPOUNDS HAVING THE FOLLOWING STRUCTURAL FORMULA ARE DISCLOSED: 3-((4-R2,5-R3-2-ISOXAZOLIN-3-YL)-NH-CO-),1,1-DI(O=),2-R1, 4-(HO-)-2H-1,2-BENZOTHIAZINE WHEREIN R1 IS HYDROGEN OR METHYL AND R2, AND R3 ARE HYDROGEN OR ALKYL. THESE COMPOUNDS ARE USEFUL AS ANTI-INFLAMMATORY AGENTS, ANTIPYRETICS, ANALGESICS.
Inventors
- 👤 H Zinnes
- 👤 M Schwartz
- 👤 J Shavel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:52
CPC Classifications
C; C07; C07D; C07D417/00; C07D417/02; C07D417/12; A; A01; A01N; A01N43/00; A01N43/72
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) | 1977-01-21 | 1977-07-23 | 1978-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-21 | 1981-07-23 | 1982-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-21 | 1985-07-23 | 1986-01-22 | $7700.00 | Window Closed / Lapsed |