Patent US2432973A successfully refreshed from Google Patents.
US2432973A
Expired / Lapsed
US
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Apparatus for feeding granular salt into a fused salt electrolysis cell
Assignee: EIDP Inc
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Filing: 1944-01-24
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Granted: 1947-12-16
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Expires: 1964-01-24
Abstract
No abstract record available.
Inventors
- 👤 George E Smedberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:41
CPC Classifications
C; C25; C25C; C25C7/00; C25C7/005; B; B01; B01J; B01J8/00; B01J8/0015; B01J8/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US528365A
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US1373394A
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US1701967A
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GB189913375A
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US978934A
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US1557089A
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US1591799A
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US1546069A
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US2111264A
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US1961893A
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US2263181A
Cited
US2382434A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-15 | 1951-06-16 | 1951-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-15 | 1955-06-16 | 1955-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-15 | 1959-06-16 | 1959-12-16 | $7700.00 | Window Closed / Lapsed |