Patent US3697590A successfully refreshed from Google Patents.
US3697590A
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Phenylacetic acids and their salts
Assignee: Sanofi Aventis France
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Filing: 1969-07-28
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Granted: 1972-10-10
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Expires: 1989-07-28
Abstract
Abstract WHERE R represents an hydrogen or a methyl radical. Compounds of formula (1) and their metallic and amine salts are very useful substances in human therapeutics, namely as analgesic, antipyretic and antiinflamatory medicines. Compounds of formula (1) are prepared by reacting a 2phenothiazinylacetic acid of formula: Phenylacetic acid derivatives having the formula: WITH A DESULFURIZING REDUCING AGENT. D R A W I N G
Inventors
- 👤 Jacques R Boissier
- 👤 Roger Ratouis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:02
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/185; A61K31/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
20 words
A compound selected from the group consisting of (3-anilino phenyl) acetic acid, and its alkali-metal, alkaline-earth metal and ammonium salts.
Claim 2
Dependent Claim
21 words
A compound selected from the group consisting of (N-methyl 3-anilino phenyl) acetic acid, and its alkali-metal, alkaline-earth metal and ammonium salts.
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) | 1975-10-10 | 1976-04-10 | 1976-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-10 | 1980-04-10 | 1980-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-10 | 1984-04-10 | 1984-10-10 | $7700.00 | Window Closed / Lapsed |