US3364203A
Expired / Lapsed
US
⏱️ 0.0 years remaining
6, 7-methylene and 6, 7-halomethylene pyrazole pregnanes and processes for their preparation
Assignee: Roche Palo Alto LLC
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Filing: 1967-04-11
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Granted: 1968-01-16
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Expires: 1987-04-11
Abstract
No abstract record available.
Inventors
- 👤 Colin C Beard
- 👤 Alexander D Cross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:47
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/56; A61K31/57; A61K31/573; C; C07; C07J; C07J1/00; C07J17/00; C07J53/00; C07J71/00; C07J75/00; F; F28; F28B; F28B1/00; F28B1/06; F28F; F28F13/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3325480A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-15 | 1971-07-17 | 1972-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-15 | 1975-07-17 | 1976-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-15 | 1979-07-17 | 1980-01-16 | $7700.00 | Window Closed / Lapsed |