US3019239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
6alpha-bromo pregnane compounds
Assignee: Syntex SA
•
Filing: 1959-02-13
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Granted: 1962-01-30
•
Expires: 1979-02-13
Abstract
No abstract record available.
Inventors
- 👤 Howard J Ringold
- 👤 Rosenkranz George
- 👤 Edwards John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:21
CPC Classifications
C; C07; C07J; C07J75/00; C07J1/00; C07J5/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
5 words
6A-BROMO-21-FLUORO-$4-PREGNENE-3,20-DIONE. 2. 6A-BROMO-$1,4-PREGNADIEN-3,20-DIONE. 3. 6A-BROMO-21-FLUORO-$1,4-PREGNADIEN-3,20-DIONE.
Claim 2
Dependent Claim
5 words
6A-BROMO-21-FLUORO-$4-PREGNENE-3,20-DIONE. 2. 6A-BROMO-$1,4-PREGNADIEN-3,20-DIONE. 3. 6A-BROMO-21-FLUORO-$1,4-PREGNADIEN-3,20-DIONE.
Claim 3
Dependent Claim
6 words
A COMPOUND OF THE FOLLOWING FORMULA:
Claim 4
Dependent Claim
6 words
A COMPOUND OF THE FOLLOWING FORMULA:
References Cited (Backward Citations)
US2085474A
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US2332815A
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US2835667A
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US2818408A
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US2838528A
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US2838535A
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US2838543A
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US2838542A
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US2838541A
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US2838500A
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US2838496A
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US2838531A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-29 | 1965-07-31 | 1966-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-29 | 1969-07-31 | 1970-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-29 | 1973-07-31 | 1974-01-30 | $7700.00 | Window Closed / Lapsed |