US3754021A
Expired / Lapsed
US
⏱️ 0.0 years remaining
4-keto-4-(3-chloro-4'-cyclohexyl)phenylbutyric acid and related compounds
Assignee: Merck and Co Inc
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Filing: 1968-05-29
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Granted: 1973-08-21
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Expires: 1988-05-29
Abstract
Abstract THE PREPARATION OF VARIOUS CYCLOHEXYLPHENYL KETO AND HYDROXY BUTYRIC ACIDS AND DERIVATIVES, THE PROCESSES FOR PREPARING THEM, AND THEIR METHOD OF TREATMENT AS ANTIINFLAMMATORY AGENTS, ARE DISCLOSED.
Inventors
- 👤 T Shen
- 👤 C Dorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:41
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/16; C07D295/18; C07D295/182; C07D295/185
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) | 1976-08-20 | 1977-02-19 | 1977-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-20 | 1981-02-19 | 1981-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-20 | 1985-02-19 | 1985-08-21 | $7700.00 | Window Closed / Lapsed |