US2396569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of purifying electrolytes
Assignee: Hudbay Minerals Inc
•
Filing: 1943-08-09
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Granted: 1946-03-12
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Expires: 1963-08-09
Abstract
No abstract record available.
Inventors
- 👤 Griffith Dinsmore Laurence
- 👤 Hendrickson Luther Glenn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:25
CPC Classifications
C; C01; C01G; C01G9/00; C25; C25C; C25C1/00; C25C1/16
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) | 1949-03-11 | 1949-09-10 | 1950-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-03-11 | 1953-09-10 | 1954-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-03-11 | 1957-09-10 | 1958-03-12 | $7700.00 | Window Closed / Lapsed |