US3594386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
8-substituted-1-oxa-3,8-diazaspiro(4,5)decan-2-ones
Assignee: Science Union et Cie
•
Filing: 1968-12-18
•
Granted: 1971-07-20
•
Expires: 1988-12-18
Abstract
Abstract 1-OXA-2-OXO-3,8-DIAZO SPIRO (4,5) DECANES SUBSTITUTED IN 8-POSITION BY (1) AR-X-(CH2)N WHEREIN X IS -CO-, -CHOH-, -CH(OCH2)-, -C(-C6H5)(-OH)- N IS 1, 2 OR 3, AND AR IS PHENYL OR MONO- OR DI-HALO-PHENYL, OR (2) AR-(CH2)2- WHEREIN AR IS 2-PYRIDYL OR 4-PYRIDYL OR CERTAIN SUBSTITUTED PHENYL. THESE COMPOUNDS POSSESS ANALGESIC, ANTIINFLAMMATORY, CENTRAL NERVOUS SYSTEM DEPRESSANT AND BRONCHODILATOR PROPERTIES.
Inventors
- 👤 Gilbert Regnier
- 👤 Roger Canevari
- 👤 Jean-Claude Le Douarec
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:04
CPC Classifications
C; C07; C07D; C07D498/00; C07D498/02; C07D498/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |