Patent US3546215A successfully refreshed from Google Patents.
US3546215A
Expired / Lapsed
US
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6-gem-difluoro steroids
Assignee: Roche Palo Alto LLC
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Filing: 1968-09-30
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Granted: 1970-12-08
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Expires: 1988-09-30
Abstract
No abstract record available.
Inventors
- 👤 John H Fried
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:49
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/56; A61K31/57; A61K31/573; A61K31/58; C; C07; C07J; C07J5/00; C07J7/00; C07J71/00; C07J75/00; G; G12; G12B; G12B13/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3264332A
Cited
US3282969A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-07 | 1974-06-08 | 1974-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-07 | 1978-06-08 | 1978-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-07 | 1982-06-08 | 1982-12-08 | $7700.00 | Window Closed / Lapsed |