US3704295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steroido(3,2-c)pyrazoles and preparation thereof
Assignee: STWB Inc
•
Filing: 1959-02-16
•
Granted: 1972-11-28
•
Expires: 1979-02-16
Abstract
Abstract THIS INVENTION RELATES TO HETEROCYLIC SUBSTITUTED STEROIDS, AND IN PARTICULAR IT IS CONCERNED WITH STEROIDO (3,2-C)PYRAZOLES AND THE PREPARATION THEROF, AND TO INTERMEDIATES IN THE PREPARATION THEREOF.
Inventors
- 👤 Raymond O Clinton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:21
CPC Classifications
C; C07; C07D; C07D231/00; C07D231/54; C07J; C07J1/00; C07J5/00; C07J71/00; C07J75/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1975-11-28 | 1976-05-29 | 1976-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-28 | 1980-05-29 | 1980-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-28 | 1984-05-29 | 1984-11-28 | $7700.00 | Window Closed / Lapsed |