US3013011A
Expired / Lapsed
US
⏱️ 0.0 years remaining
9,11-dihalo-5-pregnenes
Assignee: Merck Sharp & Dohme LLC
•
Filing: 1959-08-14
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Granted: 1961-12-12
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Expires: 1979-08-14
Abstract
No abstract record available.
Inventors
- 👤 Alexander L Nussbaum
- 👤 Eugene P Oliveto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:26
CPC Classifications
C; C07; C07J; C07J5/00; C07J75/00; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/843; Y10S435/85; Y10S435/911
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
COMPOUNDS OF THE GROUP CONSISTING OF 9A,11B-DIHALOGENO-1,5-PREGNADIENES OF THE FOLLOWING FORMULAE:
Claim 2
Dependent Claim
11 words
COMPOUNDS OF THE GROUP CONSISTING OF 9A,11B-DIHALOGENO-1,5-PREGNADIENES OF THE FOLLOWING FORMULAE:
References Cited (Backward Citations)
US2894963A
Cited
US2908696A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |