US3736347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substituted alkenoic acids and esters and salts thereof
Assignee: Beecham Group PLC
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Filing: 1970-08-03
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Granted: 1973-05-29
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Expires: 1990-08-03
Abstract
Abstract SUBSTITUTED ALKENOIC ACIDS HAVING TWO PHENYL OR LOWER ALKOXYPHENYL GROUPS AND CERTAIN DERIVZTIVES HAVE BEEN FOUND TO HAVE ESTOROGENIC, E.G., ANTI-FERTILITY PROPERTIES FOR TREATING MENOPAUSAL DISORDERS OF FOR ESTROGENIC REPLACEMENT. TYPICALL COMPOUNDS ARE 2-CARBOXY-5,5-DIPHENYL-4METHYLPHENT-4-ENOIC ACID AND 2,4-ETHYL-5,5-DIPHENYL-2CARBOXYPENT-4-ENOIC ACID AND 2,4-DIMETHYL-5-PHENYL-5-(4METHOXY-PHENYL)PENT-4-ENOIC ACID. THE NEW COMPOUNDS ARE FORMULATED AS TABLES AND CAPSULES FOR ORAL USE AND AS INJECTABLES WITH STERILE WATER.
Inventors
- 👤 E Billett
- 👤 D Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:18
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/132; C07C29/136; C07C29/147; C07C57/00; C07C57/30; C07C57/42; C07C59/00; C07C59/40; C07C59/58; C07C59/64
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) | 1976-05-28 | 1976-11-27 | 1977-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-28 | 1980-11-27 | 1981-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-28 | 1984-11-27 | 1985-05-29 | $7700.00 | Window Closed / Lapsed |