US3148183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Delta4 and delta4, 6-17alpha-acyloxy-20-oxo-steroid-[3, 2-c] pyrazoles of the pregnane series
Assignee: Merck and Co Inc
•
Filing: 1962-06-20
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Granted: 1964-09-08
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Expires: 1982-06-20
Abstract
No abstract record available.
Inventors
- 👤 Ralph F Hirschmann
- 👤 Arthur A Patchett
- 👤 Rosegay Avery
- 👤 Gerald J Kent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:08
CPC Classifications
C; C07; C07D; C07D231/00; C07D231/54; A; A61; A61K; A61K31/00; A61K31/56; A61K31/57; A61K31/573; A61K31/58; C07J; C07J17/00; C07J21/00; C07J21/005; C07J21/008; C07J7/00; C07J7/0005; C07J7/001; C07J7/004; C07J7/0045; C07J7/005; C07J7/0055; C07J7/0065; C07J7/0075; C07J71/00; C07J71/0005; C07J71/001; C07J71/0036; C07J71/0042; C07J71/0047; C07J75/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
20 words
A COMPOUND SELECTED FROM THE GROUP OF COMPOUNDS HAVING STRUCTURAL FORMULAS A AND B AND THE $4,6-ANALOGUES OF SAID COMPOUNDS
Claim 2
Dependent Claim
20 words
A COMPOUND SELECTED FROM THE GROUP OF COMPOUNDS HAVING STRUCTURAL FORMULAS A AND B AND THE $4,6-ANALOGUES OF SAID COMPOUNDS
References Cited (Backward Citations)
US2945852A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-08 | 1968-03-09 | 1968-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-08 | 1972-03-09 | 1972-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-08 | 1976-03-09 | 1976-09-08 | $7700.00 | Window Closed / Lapsed |