US3682898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
17-oxygenated 7alpha-methyl-2,3-epithio-5alpha-androstanes
Assignee: GD Searle LLC
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Filing: 1969-08-13
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Granted: 1972-08-08
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Expires: 1989-08-13
Abstract
Abstract ANABOLIC AND ANDROGENIC 17-OXYGENATED-7A-METHYL-2,3EPITHIO-5A-ANDROSTANES LACKING POTENT ANTI-ESTROGENIC SIDEEFFECTS ARE PRODUCED BY REACTION OF THE CORRESPONDING 2,3-EPOXY COMPOUNDS WITH HYDROTHIOCYANIC ACID FOLLOWED BY CYCLIZATION OF THE 2/3-HYDROXY/THIOCYANO INTERMEDIATES.
Inventors
- 👤 Paul D Klimstra
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:26
CPC Classifications
C; C07; C07J; C07J71/00; C07J71/0073; C07J71/0078; C07J71/0084; C07J1/00; C07J1/0003; C07J1/0011; C07J41/00; C07J41/0033; C07J41/0094; C07J71/0005; C07J71/001
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) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |