Patent US3836581A successfully refreshed from Google Patents.
US3836581A
Expired / Lapsed
US
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1-alkoximino-2-(omega-substituted-alkyl)-2-cyclopentenes
Assignee: Wyeth Holdings LLC
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Filing: 1973-02-26
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Granted: 1974-09-17
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Expires: 1993-02-26
Abstract
Abstract THIS DISCLOSURE DESCRIBED CERTAIN 1-ALKOXIMINO-2-(WSUBSTITUTED-ALKYLL)-2-CYCLOPENTENES USEFUL AS INTERMEDIATES FOR THE PREPARATION OF HOMOLOGUES, ANALOGUES, CONGENERS, AND DERIVATIVES OF 9-OXO-13-TRANS-PROSTENOIC ACID AND OF 9-HYDROXY-13-TRANS-PROSTENOIC ACID WHICH HAVE ANTIMICROBIAL ACTIVITY AND PROSTAGLANDIN-LIKE HYPOTENSIVE ACITVITY.
Inventors
- 👤 K Bernady
- 👤 J Poletto
- 👤 M Weiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:47
CPC Classifications
C; C07; C07D; C07D317/00; C07D317/08; C07D317/72; C07C; C07C405/00; C07C405/0008; C07C405/0016; C07C405/0025; C07C405/0033; C07C405/0041; C07D295/00; C07D295/04; C07D295/14; C07D295/155
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) | 1977-09-16 | 1978-03-18 | 1978-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-16 | 1982-03-18 | 1982-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-16 | 1986-03-18 | 1986-09-17 | $7700.00 | Window Closed / Lapsed |