Patent US1994882A successfully refreshed from Google Patents.
Patent US2470073A successfully refreshed from Google Patents.
US2470073A
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Electrolytic cell and method of operating same
Assignee: FMC Corp
•
Filing: 1944-08-16
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Granted: 1949-05-10
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Expires: 1964-08-16
Abstract
No abstract record available.
Inventors
- 👤 Frank S Low
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:03
CPC Classifications
C; C25; C25B; C25B1/00; C25B1/01; C25B1/24; C25B1/26; C25B9/00; C25B9/17
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US586236A
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US883140A
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US1054497A
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US1246099A
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US1752348A
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US1982224A
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US2207734A
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US2273036A
Cited
US2390591A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-09 | 1952-11-08 | 1953-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-09 | 1956-11-08 | 1957-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-09 | 1960-11-08 | 1961-05-10 | $7700.00 | Window Closed / Lapsed |