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US2582955A
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High-frequency induction-heating apparatus
Assignee: Ohio Crankshaft Co
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Filing: 1949-04-07
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Granted: 1952-01-22
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Expires: 1969-04-07
Abstract
No abstract record available.
Inventors
- 👤 Alfred C Body
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:46
CPC Classifications
B; B23; B23K; B23K13/00; B23K13/01; B23K13/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2146430A
Cited
US2256873A
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GB485651A
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US2227866A
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US2399897A
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US2460687A
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US2461323A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-21 | 1955-07-23 | 1956-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-21 | 1959-07-23 | 1960-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-21 | 1963-07-23 | 1964-01-22 | $7700.00 | Window Closed / Lapsed |