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Patent US2376535A successfully refreshed from Google Patents.
US2376535A
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Recovery of magnesium from suspensions in nonconducting liquids
Assignee: Union Oil Company of California
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Filing: 1941-12-22
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Granted: 1945-05-22
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Expires: 1961-12-22
Abstract
No abstract record available.
Inventors
- 👤 Harmon F Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:37
CPC Classifications
C; C22; C22B; C22B26/00; C22B26/20; C22B26/22; B; B01; B01D; B01D33/00; B01D33/06; B01D33/44; B01D33/46; B01D33/466; B01D35/00; B01D35/06
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) | 1948-05-21 | 1948-11-20 | 1949-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-05-21 | 1952-11-20 | 1953-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-05-21 | 1956-11-20 | 1957-05-22 | $7700.00 | Window Closed / Lapsed |