US3663567A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-substituted cycloalkanoindoles
Assignee: Sandoz AG
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Filing: 1970-12-04
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Granted: 1972-05-16
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Expires: 1990-12-04
Abstract
Abstract THE INVENTION DISCLOSES NOVLE PROCESS FOR PREPARATION OF N-SUBSTITUTED CYCLOALKANOINDOLES INCLUDING NOVEL COMPOUNDS OF SAID TYPE EXHIBITING PHARAMACEUTICAL ACTIVITY IN ANIMALS AND ALSO USEFUL AS INTERMEDIATES.
Inventors
- 👤 Marcel K Eberle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:22
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/56; C07D209/80; C07D209/82; C07D209/86; C07D209/58; C07D209/70; C07D231/00; C07D231/02; C07D231/04
Claims Analysis
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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) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |