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US2481071A
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US
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High-frequency induction heating device
Assignee: Old Carco LLC
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Filing: 1945-07-25
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Granted: 1949-09-06
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Expires: 1965-07-25
Abstract
No abstract record available.
Inventors
- 👤 Omer E Bowlus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:23
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/02; H05B6/36; H05B6/362
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1789229A
Cited
US1936309A
Cited
US2151035A
Cited
US2271916A
Cited
US2397990A
Cited
US2408229A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-05 | 1953-03-07 | 1953-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-05 | 1957-03-07 | 1957-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-05 | 1961-03-07 | 1961-09-06 | $7700.00 | Window Closed / Lapsed |