US2686865A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilizing molten material during magnetic levitation and heating thereof
Assignee: Westinghouse Electric Corp
•
Filing: 1951-10-20
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Granted: 1954-08-17
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Expires: 1971-10-20
Abstract
No abstract record available.
Inventors
- 👤 Jr John C R Kelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:53
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/02; H05B6/22; H05B6/32; Y; Y10; Y10S; Y10S425/00; Y10S425/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1676926A
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US2073597A
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US1904665A
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US2301456A
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US2254698A
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US2538979A
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US2513778A
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US2584660A
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US2664496A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-16 | 1958-02-15 | 1958-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-16 | 1962-02-15 | 1962-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-16 | 1966-02-15 | 1966-08-17 | $7700.00 | Window Closed / Lapsed |