Patent US2474703A successfully refreshed from Google Patents.
US2474703A
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US
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Induction heating coil providing distribution of heating effect
Assignee: RCA Corp
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Filing: 1944-09-28
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Granted: 1949-06-28
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Expires: 1964-09-28
Abstract
No abstract record available.
Inventors
- 👤 Theodore H Story
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:02
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)
US1932423A
Cited
US2000155A
Cited
GB484316A
Cited
US2144377A
Cited
US2314865A
Cited
US2303408A
Cited
US2321189A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-27 | 1952-12-27 | 1953-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-27 | 1956-12-27 | 1957-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-27 | 1960-12-27 | 1961-06-28 | $7700.00 | Window Closed / Lapsed |