Patent US3082220A successfully refreshed from Google Patents.
US3082220A
Expired / Lapsed
US
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delta2, 4-steroids of the androstane and pregnane series and process therefor
Assignee: Roche Palo Alto LLC
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Filing: 1962-02-21
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Granted: 1963-03-19
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Expires: 1982-02-21
Abstract
No abstract record available.
Inventors
- 👤 Bowers Albert
- 👤 Berkoz Belig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:50
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/56; A61K31/57; A61K31/565; A61K31/568; A61K31/5685; A61K31/569; C; C07; C07J; C07J1/00; C07J11/00; C07J5/00; C07J75/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
6 words
A COMPOUND OF THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
6 words
A COMPOUND OF THE FOLLOWING FORMULA:
Claim 3
Dependent Claim
6 words
A COMPOUND OF THE FOLLOWING FORMULA:
Claim 4
Dependent Claim
6 words
A COMPOUND OF THE FOLLOWING FORMULA:
Claim 5
Dependent Claim
6 words
A COMPOUND OF THE FOLLOWING FORMULA:
Claim 6
Dependent Claim
6 words
A COMPOUND OF THE FOLLOWING FORMULA:
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) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |