Patent US3213086A successfully refreshed from Google Patents.
US3213086A
Expired / Lapsed
US
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7-methyl-delta4-androstene compounds
Assignee: Roche Palo Alto LLC
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Filing: 1963-11-12
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Granted: 1965-10-19
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Expires: 1983-11-12
Abstract
No abstract record available.
Inventors
- 👤 Alexander D Cross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:42
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/56; A61K31/565; A61K31/568; C; C07; C07J; C07J1/00; C07J17/00; C07J71/00; C07J73/00; C07J75/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
A COMPOUND REPRESENTED BY THE GENERAL FORMULA:
Claim 2
Dependent Claim
7 words
A COMPOUND REPRESENTED BY THE GENERAL FORMULA:
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) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |