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US3248388A
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6alpha-fluoro-delta1, 4-pregnadien-16alpha, 17alpha, 21-triol-3, 20-diones and intermediates in the production thereof
Assignee: Roche Palo Alto LLC
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Filing: 1958-09-22
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Granted: 1966-04-26
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Expires: 1978-09-22
Abstract
No abstract record available.
Inventors
- 👤 Howard J Ringold
- 👤 Bowers Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:58
CPC Classifications
C; C07; C07D; C07D201/00; C07D201/02; C07D201/04; C07D201/16; C07D223/00; C07D223/02; C07D223/06; C07D223/08; C07D223/10; C07D225/00; C07D225/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |