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US3086028A
Expired / Lapsed
US
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3-amino estranes
Assignee: Bayer Pharma AG
•
Filing: 1960-04-15
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Granted: 1963-04-16
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Expires: 1980-04-15
Abstract
No abstract record available.
Inventors
- 👤 Dr Erich Hecker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:21
CPC Classifications
C; C07; C07J; C07J41/00; C07J41/0005; C07J7/00; C07J7/0005; C07J7/001; C07J7/0015; C07J7/002; C07J75/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
A METHOD FOR PRODUCING A 3-AMINO STEROID COMPOUND OF THE FORMULA:
Claim 2
Independent Claim
11 words
A METHOD FOR PRODUCING A 3-AMINO STEROID COMPOUND OF THE FORMULA:
References Cited (Backward Citations)
US2225419A
Cited
US2418603A
Cited
US2824096A
Cited
US2884410A
Cited
US2940990A
Cited
US2949477A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |