Patent US3748282A successfully refreshed from Google Patents.
US3748282A
Expired / Lapsed
US
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Production of shaped magnesium oxide compositions
Assignee: Dart Industries Inc
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Filing: 1971-10-04
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Granted: 1973-07-24
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Expires: 1991-10-04
Abstract
Abstract SHAPED MAGNESIUM OXIDE COMPOSITION HAVING A GOOD BALANCE OF PROPERTIES INCLUDING CATALYTIC ACTIVITY MAY BE PRODUCED BY SLAKING A QUANTITY OF MAGNESIUM OXIDE IN AN AQUEOUS SOLUTION OF A WATER MISCIBLE VOLATILE ORGANIC COMPOUND, DRYING THE SLAKED MIXTURE TO A SPECIFIED WETNESS, GRANULATING AND COMPACTING THE DRIED MIXTURE INTO A DESIRED SHAPE AND CALCINING THE SHAPED MIXTURE TO CONVERT A PORTION OF THE MAGNESIUM HYDROXIDE FORMED DURING SLAKING TO MAGNESIUM OXIDE.
Inventors
- 👤 R Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:07
CPC Classifications
C; C01; C01F; C01F5/00; C01F5/14; C01F5/16; B; B01; B01J; B01J2/00; B01J2/02; B01J21/00; B01J21/10; B01J23/00; B01J23/16; B01J23/32; B01J23/34; B01J37/00; B01J37/0009; C01F5/02
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) | 1976-07-23 | 1977-01-22 | 1977-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-23 | 1981-01-22 | 1981-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-23 | 1985-01-22 | 1985-07-24 | $7700.00 | Window Closed / Lapsed |