Patent US2628929A successfully refreshed from Google Patents.
US3686271A
Expired / Lapsed
US
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Novel normolipemiant agents
Assignee: Sa Dite
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Filing: 1970-08-03
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Granted: 1972-08-22
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Expires: 1990-08-03
Abstract
Abstract NOVEL NORMOLIPEMIANT AGENTS. THEY ARE CONSTITUTED BY COMPOUNDS OF THE FORMULA: (HOOC-C(-R1)(-R2)-X)2-AR IN WHICH X IS O OR NH, AR IS A MONOCYCLIC OR BICYCLIC ARYLENE RADICAL, SUCH AS PHENYLENE, BIPHENYL OR NAPHTHYLENE, R1 IS A HYDROGEN ATOM OR AN ALKYL RADICAL HAVING 1 TO 2 CARBON ATOMS AND R2 IS AN ALKYL RADICAL HAVING 1 TO 2 CARBON ATOMS AND ALSO THE ESTER, AMIDE AND NITRILE DERIVATIVES OF SUCH COMPOUNDS AND THE NON-TOXIC SALTS.
Inventors
- 👤 Louis Lefon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:26
CPC Classifications
C; C07; C07C; C07C59/00; C07C59/40; C07C59/58; C07C59/64; C07C59/66; C07C59/68; C07C51/00; C07C51/347; C07C51/367
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) | 1975-08-22 | 1976-02-21 | 1976-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-22 | 1980-02-21 | 1980-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-22 | 1984-02-21 | 1984-08-22 | $7700.00 | Window Closed / Lapsed |