US3072646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel 6-chloro-17alpha-haloethynyl-19-norandrostadienes and processes
Assignee: Merck and Co Inc
•
Filing: 1961-03-02
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Granted: 1963-01-08
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Expires: 1981-03-02
Abstract
No abstract record available.
Inventors
- 👤 Fried John
- 👤 Thomas S Bry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:58
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/56; A61K31/565; A61K31/568; A61K31/569; C; C07; C07J; C07J1/00; C07J75/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
19 words
6A,7A-EPOXY - 17A - HALOETHYNYL - 17B - HYDROXY19 - NOR - 4 - ANDROSTENE - 3 - ONE.
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) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |