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US2654019A
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High-frequency induction-heating apparatus
Assignee: Ohio Crankshaft Co
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Filing: 1950-10-06
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Granted: 1953-09-29
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Expires: 1970-10-06
Abstract
No abstract record available.
Inventors
- 👤 Alfred C Body
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:23
CPC Classifications
B; B23; B23K; B23K13/00; B23K13/01; B23K13/02; H; H05; H05B; H05B6/00; H05B6/02; H05B6/36; H05B6/365
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1915047A
Cited
US2086305A
Cited
US2024906A
Cited
US2460687A
Cited
US2475348A
Cited
US2467201A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-28 | 1957-03-30 | 1957-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-28 | 1961-03-30 | 1961-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-28 | 1965-03-30 | 1965-09-29 | $7700.00 | Window Closed / Lapsed |