US2839461A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic recovery of nickel
Assignee: Huntington Alloys Corp
•
Filing: 1954-02-01
•
Granted: 1958-06-17
•
Expires: 1974-02-01
Abstract
No abstract record available.
Inventors
- 👤 Renzoni Louis Secondo
- 👤 Barker Wilbur Vernon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:24
CPC Classifications
C; C25; C25C; C25C1/00; C25C1/06; C25C1/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US720235A
Cited
US805969A
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US1569137A
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US1751630A
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US1953758A
Cited
US2394874A
Cited
GB667659A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-16 | 1961-12-16 | 1962-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-16 | 1965-12-16 | 1966-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-16 | 1969-12-16 | 1970-06-17 | $7700.00 | Window Closed / Lapsed |