Patent US3766263A successfully refreshed from Google Patents.
US3766263A
Expired / Lapsed
US
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Substituted 2-phenoxyphenylacetic acids
Assignee: Reckitt Benckiser Healthcare UK Ltd
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Filing: 1971-04-09
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Granted: 1973-10-16
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Expires: 1991-04-09
Abstract
Abstract COMPOUNDS OF THE FORMULA: 1-(HOOC-CH(-R)-),2-((2-R2,R3,R4,(R5)P-PHENYL)-O-),5-R1- BENZENE WHICH HAVE FROM 2 TO 4 SUBSTITUENTS IN THE B RING WHEREIN R, R1, R2, R3, R4 AND R5 REPRESNET CERTAIN SPECIFIED SUBSTITUENT GROUPS AND P IS SELECTED FROM 3, 1 AND 2. THE COMPOUNDS OF THE INVENTION POSSESS ANTI-INFLAMMATORY ACTIVITY.
Inventors
- 👤 K Godfrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:43
CPC Classifications
C; C07; C07C; C07C59/00; C07C59/40; C07C59/58; C07C59/64; C07C59/66; C07C59/68; C07C45/00; C07C45/45; C07C45/46; C07C45/61; C07C45/67; C07C45/68; C07C45/70; C07C49/00; C07C49/76; C07C49/80; C07C49/807; C07C49/84
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) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |