US3516785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for selective recovery of magnesium chloride from mixed salt solutions
Assignee: AMAX MAGNESIUM Corp A CORP OF
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Filing: 1967-06-14
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Granted: 1970-06-23
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Expires: 1987-06-14
Abstract
No abstract record available.
Inventors
- 👤 Rollin P Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:54
CPC Classifications
C; C01; C01F; C01F5/00; C01F5/26; C01F5/30; C05; C05D; C05D1/00; C05D1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3067006A
Cited
US3275409A
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US3099528A
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US3268289A
Cited
US3317414A
Cited
US3432258A
Cited
US3338668A
Cited
US3336107A
Cited
US3346333A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-22 | 1973-12-22 | 1974-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-22 | 1977-12-22 | 1978-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-22 | 1981-12-22 | 1982-06-23 | $7700.00 | Window Closed / Lapsed |