Patent US3578657A successfully refreshed from Google Patents.
US3578657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antilipaemic sulphated polysaccharide
Assignee: Individual
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Filing: 1968-07-29
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Granted: 1971-05-11
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Expires: 1988-07-29
Abstract
Abstract AN ANTILIPAEMIC SULPHATED POLYSACCARIDE ACTIVE UNDER ORAL ADMINISTARATION, WHICH CONSISTS OF A SALT, PREFERABLY AN ALKALINE SALT, OF A SULPHATED HYDRODEXTRAN, WITH AN AVERAGE CONTENT OF FROM 1 TO 3 -SO3- GROUPS PER MONOSACCHARIDE GROUPS AND BEING ESSSENTIALLY NON-REDUCING AS DETERMINED BY THE SOMOGYI METHOD, HAVING PREFERABLY AN INTRINSIC VISCOSITY OF BETWEEN O.02 AND 0.07 AT 25*C. AND CONTAINING PROPORTION OF SULPHUR OF FROM 10 TO 20% BY WEIGHT.
Inventors
- 👤 Rene Ricard
- 👤 Miguel Margarit Taya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:44
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/70; A61K31/715; C; C08; C08B; C08B37/00; C08B37/0006; C08B37/0009; C08B37/0021
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) | 1974-05-10 | 1974-11-09 | 1975-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-10 | 1978-11-09 | 1979-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-10 | 1982-11-09 | 1983-05-11 | $7700.00 | Window Closed / Lapsed |