US2594420A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-frequency dielectric heating system
Assignee: RCA Corp
•
Filing: 1948-06-29
•
Granted: 1952-04-29
•
Expires: 1968-06-29
Abstract
No abstract record available.
Inventors
- 👤 Henderson C Gillespie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:43
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)
GB439166A
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US2112418A
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US2179261A
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US2251277A
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US2320876A
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US2401991A
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US2416172A
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US2453529A
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US2473188A
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US2467285A
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US2470443A
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US2491822A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-29 | 1955-10-29 | 1956-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-29 | 1959-10-29 | 1960-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-29 | 1963-10-29 | 1964-04-29 | $7700.00 | Window Closed / Lapsed |