US2514283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolysis of light metals
Assignee: United States Department of the Navy
•
Filing: 1944-09-16
•
Granted: 1950-07-04
•
Expires: 1964-09-16
Abstract
No abstract record available.
Inventors
- 👤 Robert K Lawson
- 👤 Walter O Mcclintock
- 👤 Henry R Hendrickson
- 👤 Frank W Woodman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:56
CPC Classifications
C; C25; C25C; C25C7/00; C25C7/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US476914A
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US1311231A
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US778270A
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US1214808A
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US1534316A
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US1562090A
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GB351542A
Cited
US1951836A
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US2073631A
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AT152160B
Cited
US2216167A
Cited
US2421209A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-03 | 1954-01-02 | 1954-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-03 | 1958-01-02 | 1958-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-03 | 1962-01-02 | 1962-07-04 | $7700.00 | Window Closed / Lapsed |