US3394151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1, 3, 5 (10), 8 (14), 9 (11), 15-gonahexaen-17 ones and intermediates obtained in the preparation thereof
Assignee: Merck and Co Inc
•
Filing: 1965-08-30
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Granted: 1968-07-23
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Expires: 1985-08-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert D Hoffsommer
- 👤 Taub David
- 👤 Norman L Wendler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:31
CPC Classifications
C; C07; C07D; C07D309/00; C07D309/02; C07D309/08; C07D309/10; C07D309/12; C07C; C07C381/00; C07C381/12
Claims Analysis
Total Claims: 0
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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) | 1971-07-23 | 1972-01-22 | 1972-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-23 | 1976-01-22 | 1976-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-23 | 1980-01-22 | 1980-07-23 | $7700.00 | Window Closed / Lapsed |