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Patent US3325480A successfully refreshed from Google Patents.
US3325480A
Expired / Lapsed
US
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5'-substituted steroidal pyrazoles of the pregnane series
Assignee: Ormonoterapia Richter SpA
•
Filing: 1965-01-29
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Granted: 1967-06-13
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Expires: 1985-01-29
Abstract
No abstract record available.
Inventors
- 👤 Ruggieri Pietro De
- 👤 Guzzi Umberto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:58
CPC Classifications
C; C07; C07J; C07J41/00; C07J41/0033; C07J41/0094; C07J21/00; C07J41/005; C07J7/00; C07J7/0005; C07J7/001; C07J7/004; C07J7/0045; C07J71/00; C07J71/0036; C07J71/0042; C07J71/0047
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
THE COMPOUNDS HAVING THE TAUTOMERIC FORMS OF THE FORMULAE
Claim 2
Dependent Claim
9 words
THE COMPOUNDS HAVING THE TAUTOMERIC FORMS OF THE FORMULAE
References Cited (Backward Citations)
US3067194A
Cited
US3148183A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-12 | 1970-12-12 | 1971-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-12 | 1974-12-12 | 1975-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-12 | 1978-12-12 | 1979-06-13 | $7700.00 | Window Closed / Lapsed |