US3557096A
Expired / Lapsed
US
⏱️ 0.0 years remaining
5,6,8,9 - tetrahydro - 1,3 - benzoxazacycyloundecane - 2,4,7(3h) - triones and their preparation
Assignee: Wyeth LLC
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Filing: 1968-06-20
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Granted: 1971-01-19
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Expires: 1988-06-20
Abstract
Abstract THERE ARE DISCLOSED HEREIN 5,6,8,9-TETRAHYDRO-1,3-BENZOXAZACYCLOUNDECANE-2,5,7(3H)-TRIONES AND ITS CORRESPONDING 3-METHYL DERIVATIVE AS WELL AS THE 11-METHOXY DERIVATIVES OF BOTH THE ABOVE COMPOUNDS AND THE INTERMEDIATES USED IN THEIR PREPARATION, VIZ, 3,4,5,6-TETRAHYDRO-2(1H)-BENZO (H) QUINOLONE, ITS 1-METHYL DERIVATIVE, ANT THE 8-METHOXY DERIVATIVES OF BOTH THOSE COMPOUNDS. THE COMPOUNDS POSSESS ANTI-INFLAMMATORY ACTIVITY, AND A PROCESS FOR THEIR PREPARATION AS WELL AS METHODS FOR USING THEM ARE ALSO DISCLOSED.
Inventors
- 👤 Johan F Bagli
- 👤 Hans U Immer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:33
CPC Classifications
C; C07; C07D; C07D221/00; C07D221/02; C07D221/04; C07D221/06; C07D221/10; C07D267/00
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) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |