US3631083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnesium-aluminum complexes of polyhydroxy compounds and their preparation
Assignee: Zeneca Inc
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Filing: 1970-04-24
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Granted: 1971-12-28
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Expires: 1990-04-24
Abstract
Abstract MAGNESIUM-ALUMINUM COMPLEXES OF POLYHYDROXY COMPOUNDS ARE PREPARED BY REACTING A MAGNESIUM ALKOXIDE AND AN ALUMINUM ALKOXIDE WITH A POLYHYDROXY COMPOUND SUCH AS SORBITOL IN THE PRESENCE OF WATER.
Inventors
- 👤 Ludwig A Hartmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:35
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/06; C07F5/069; A; A61; A61P; A61P1/00; A61P1/04
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) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |