US3472882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
7-halomethyl-19-nor steroids and processes for their preparation
Assignee: Roche Palo Alto LLC
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Filing: 1966-12-14
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Granted: 1969-10-14
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Expires: 1986-12-14
Abstract
No abstract record available.
Inventors
- 👤 Belig Berkoz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:25
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/56; A61K31/565; A61K31/568; A61K31/5685; A61K31/569; C; C07; C07J; C07J1/00; C07J75/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3047566A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-13 | 1973-04-14 | 1973-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-13 | 1977-04-14 | 1977-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-13 | 1981-04-14 | 1981-10-14 | $7700.00 | Window Closed / Lapsed |