US2703273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing magnesia products from magnesium hydroxide sluidge
Assignee: FMC Corp
•
Filing: 1951-07-03
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Granted: 1955-03-01
•
Expires: 1971-07-03
Abstract
No abstract record available.
Inventors
- 👤 Robertson James Allen
- 👤 Miles Charles Burke
- 👤 Linton Donald Crouch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:03
CPC Classifications
C; C01; C01F; C01F5/00; C01F5/02; C01F5/06; C01F5/08; C01P; C01P2006/00; C01P2006/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
THE METHOD OF PRODUCING MAGNESIA PRODUCTS FROM MAGNESIUM HYDROXIDE SLUDGE PRECIPATED FROM A SOLUTION CONTAINING A SOLUBLE MAGNESIUM HALIDE BY THE USE OF LINE AND CONCENTRATED BY SETLING WHICH COMPRISES SEPARATING THE WHOLE OF THE PRECIPITATED MAGNESIUM BYDROXIDE SLUDE INTO A FINE FICTION CONSISTING OF ABOUT 60 TO 70% OF MAGNESIUM HYDROXIDE CONTENT OF THE WHOLE SLUDGE, SAID FINE FRATION CONTAINING AT LEAST 30% LESS CAO AND AT LEAST 20% LESS SIO2 THAN THE ORIGINAL WHOLE SLUDGE,
Claim 2
Independent Claim
77 words
THE METHOD OF PRODUCING MAGNESIA PRODUCTS FROM MAGNESIUM HYDROXIDE SLUDGE PRECIPATED FROM A SOLUTION CONTAINING A SOLUBLE MAGNESIUM HALIDE BY THE USE OF LINE AND CONCENTRATED BY SETLING WHICH COMPRISES SEPARATING THE WHOLE OF THE PRECIPITATED MAGNESIUM BYDROXIDE SLUDE INTO A FINE FICTION CONSISTING OF ABOUT 60 TO 70% OF MAGNESIUM HYDROXIDE CONTENT OF THE WHOLE SLUDGE, SAID FINE FRATION CONTAINING AT LEAST 30% LESS CAO AND AT LEAST 20% LESS SIO2 THAN THE ORIGINAL WHOLE SLUDGE,
References Cited (Backward Citations)
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-02-28 | 1958-08-30 | 1959-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-28 | 1962-08-30 | 1963-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-28 | 1966-08-30 | 1967-03-01 | $7700.00 | Window Closed / Lapsed |