Patent US3400123A successfully refreshed from Google Patents.
US3400123A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing 8beta-methyl-11beta-hydroxysteroids
Assignee: Shionogi and Co Ltd
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Filing: 1967-08-15
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Granted: 1968-09-03
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Expires: 1987-08-15
Abstract
No abstract record available.
Inventors
- 👤 Nagata Wataru
- 👤 Tomita Tetsuo
- 👤 Itazaki Hiroshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:19
CPC Classifications
C; C07; C07J; C07J71/00; C07J1/00; C07J21/00; C07J41/00; C07J75/00; C07J9/00
Claims Analysis
Total Claims: 0
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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) | 1971-09-03 | 1972-03-04 | 1972-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-03 | 1976-03-04 | 1976-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-03 | 1980-03-04 | 1980-09-03 | $7700.00 | Window Closed / Lapsed |