US2473188A
Expired / Lapsed
US
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Radio-frequency dielectric heater with constant heating rate control
Assignee: RCA Corp
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Filing: 1944-06-17
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Granted: 1949-06-14
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Expires: 1964-06-17
Abstract
No abstract record available.
Inventors
- 👤 Frederick G Albin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:58
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/46; H05B6/48; H05B6/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB439166A
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US2112418A
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US2179261A
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US2306763A
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US2280725A
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US2251277A
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US2304958A
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US2293851A
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US2396004A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-13 | 1952-12-13 | 1953-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-13 | 1956-12-13 | 1957-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-13 | 1960-12-13 | 1961-06-14 | $7700.00 | Window Closed / Lapsed |