US3487076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
17alpha-amino-progesterone and intermediates in the production thereof
Assignee: Merck and Co Inc
•
Filing: 1967-09-01
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Granted: 1969-12-30
•
Expires: 1987-09-01
Abstract
No abstract record available.
Inventors
- 👤 David B R Johnston
- 👤 Arthur A Patchett
- 👤 Thomas B Windholz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:00
CPC Classifications
C; C07; C07J; C07J75/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3187022A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-29 | 1973-06-30 | 1973-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-29 | 1977-06-30 | 1977-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-29 | 1981-06-30 | 1981-12-30 | $7700.00 | Window Closed / Lapsed |