US3257166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of magnesium fluoride
Assignee: Chemicals and Phosphates Ltd
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Filing: 1963-05-29
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Granted: 1966-06-21
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Expires: 1983-05-29
Abstract
No abstract record available.
Inventors
- 👤 Harel Simcha
- 👤 Pessahovitz Zevoulun
- 👤 Michael Kibutz Maagan
- 👤 Klein Charles Haim
- 👤 Peskin Benjamin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:39
CPC Classifications
C; C01; C01F; C01F5/00; C01F5/26; C01F5/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A PROCESS FOR THE PRODUCTION OF MAGNESIUM FLUORIDE WHICH COMPRISES GRADUALLY AND SUBSTANTIALLY SIMULTANEOUSLY INTRODUCING WITH STIRRING A LIQUID AQUEOUS SOLUTION OF A WATER FLUROIDE OF 0.3 TO 8.0% BY WEIGHT FLUORIDE CALCULATED AS FLUORINE AND A LIQUID AQUEOUS SOLUTION OF A WATER-SOLUBLE MAGNESIUM SALT OF 4 TO 18% BY WEIGHT IN SUBSTANTIALLY STOICHIOMETRIC RATIO INTO A REACTION VESSEL CONTAINING AN INITIAL QUANTITY OF WATER, MAINTAINING THE REACTION MIXTURE AT A TEMPERATURE IN THE RANGE BETWEEN 60*C. AND THE BOILING TEMPERATURE OF THE REACTION MIXTURE, AND SEPARATING THE FORMED MAGNESIUM FLORIDE FROM THE MOTHER LIQUOR.
Claim 2
Dependent Claim
95 words
A PROCESS FOR THE PRODUCTION OF MAGNESIUM FLUORIDE WHICH COMPRISES GRADUALLY AND SUBSTANTIALLY SIMULTANEOUSLY INTRODUCING WITH STIRRING A LIQUID AQUEOUS SOLUTION OF A WATER FLUROIDE OF 0.3 TO 8.0% BY WEIGHT FLUORIDE CALCULATED AS FLUORINE AND A LIQUID AQUEOUS SOLUTION OF A WATER-SOLUBLE MAGNESIUM SALT OF 4 TO 18% BY WEIGHT IN SUBSTANTIALLY STOICHIOMETRIC RATIO INTO A REACTION VESSEL CONTAINING AN INITIAL QUANTITY OF WATER, MAINTAINING THE REACTION MIXTURE AT A TEMPERATURE IN THE RANGE BETWEEN 60*C. AND THE BOILING TEMPERATURE OF THE REACTION MIXTURE, AND SEPARATING THE FORMED MAGNESIUM FLORIDE FROM THE MOTHER LIQUOR.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |