US3767674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cyclohexeno thioxanthones
Assignee: OSTRA LAKEMEDEL AB
•
Filing: 1971-10-01
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Granted: 1973-10-23
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Expires: 1991-10-01
Abstract
Abstract COMPOUNDS, USEFUL AS SCHISTOSOMICIDAL AND CARCINOSTATIC AGENTS OF THE THIAXATHONE TYPE HAVING THE GENERAL FORMULA 9-(O=),R1,R2-THIOXANTHENE AND A PHATMACEUTICALLY ACCEPTABLE SALT THEREOF, WHEREIN R1 IS THE GROUP -NH-CH2-CH2-N(-C2H5)2 AND R2 IS A CYCLOHEXYL RESIDUE FUSED TO THE THIAXANTHONE MOLECULE. ALSO PHARMACEUTICAL PREPARATION CONTAINING ONE OR MORE OF THESE COMPOUNDS AND THE USE OF THESE COMPOUNDS AS CARCINOSTATIC AGENTS AND IN THE TREATMENT OF SCHISTOSOMIASIS.
Inventors
- 👤 I Nabih
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:03
CPC Classifications
C; C07; C07C; C07C323/00
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) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |