US3830929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the treatment of hyperuricemia
Assignee: Produits Chimiques Ugine Kuhlmann
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Filing: 1973-04-11
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Granted: 1974-08-20
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Expires: 1993-04-11
Abstract
Abstract PROCESS FOR THE TREATMENT OF HYDPERURICEMIA WHICH COMPRISES ADMINISTERING A COMPOUND OF THE FORMULA 2-(R''-N(-R")-(CH2)2-CO-)-2,3-DIHYDROBENZOFURAN IN WHICH R'' AND R" EACH REPRESENT AN ALKYL GROUP CONTAINING 1 TO 5 CARBON ATOMS OR TOGETHER WITH THE NITROGEN ATOM FORM A HETEROCYCLIC RING; OR A PHARMACEUTICALLY ACCEPTABLE SALT THEREOF.
Inventors
- 👤 J Nordmann
- 👤 G Mattioda
- 👤 R Faure
- 👤 G Loiseau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:33
CPC Classifications
C; C07; C07D; C07D307/00; C07D307/77; C07D307/78; C07D307/79; C07D307/81
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) | 1977-08-19 | 1978-02-18 | 1978-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-19 | 1982-02-18 | 1982-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-19 | 1986-02-18 | 1986-08-20 | $7700.00 | Window Closed / Lapsed |