US3752814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-bromo-alpha-ergocryptine
Assignee: Sandoz AG
•
Filing: 1971-09-09
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Granted: 1973-08-14
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Expires: 1991-09-09
Abstract
Abstract THE INVENTION CONCERNS 2-BROMO-A-ERGOCRYPTINE OF THE FORMULA 2-BR-ALPHA-ERGOCRYPTINE AND PHARMACEUTICALLY ACCEPTABLE ACID ADDITION SALTS THEREOF. THE COMPOUNDS ARE USEFUL IN INHIBITING LACTION, I.E. THEY INHIBIT THE SECRETION OF LUTEOTROPIC HORMONE AND FURTHERMORE EXHIBIT ANTIFERTILITY PROPERTIES.
Inventors
- 👤 A Hofmann
- 👤 E Fluckiger
- 👤 F Troxler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:56
CPC Classifications
C; C07; C07D; C07D519/00; C07D519/02
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) | 1976-08-13 | 1977-02-12 | 1977-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-13 | 1981-02-12 | 1981-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-13 | 1985-02-12 | 1985-08-14 | $7700.00 | Window Closed / Lapsed |