US3558776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pharmaceutical composition comprising 17alpha - ethynyl -17beta - hydroxy - 7alpha - methyl -5(10)-estrene-3-one
Assignee: Pharmacia and Upjohn Co
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Filing: 1968-06-14
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Granted: 1971-01-26
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Expires: 1988-06-14
Abstract
Abstract THIS INVENTION RELATES TO THE NOVEL GONADOTROPIN INHIBITING (ANTI-FERTILITY) COMPOUNDS, $5(10) - 3 - KETO - 7AMETHYL-17B-HYDROXY-17A-ALKYNYLESTRENES, HAVING THE FORMULA VIII 7-CH3,17-(R"-C*C-),17-HO-ESTR-5(10)-EN-3-ONE WHEREIN R" IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND ALKYL OF FROM ONE THROUGH FOUR CARBON ATOMS.
Inventors
- 👤 J Allan Campbell
- 👤 John C Babcock
- 👤 John E Pike
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:37
CPC Classifications
C; C07; C07J; C07J1/00; C07J75/00
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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |