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US2674050A
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High-frequency heating apparatus
Assignee: Pye Electronic Products Ltd
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Filing: 1949-09-06
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Granted: 1954-04-06
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Expires: 1969-09-06
Abstract
No abstract record available.
Inventors
- 👤 Pound John Pickman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:25
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/64; H05B6/78; F; F26; F26B; F26B3/00; F26B3/32; F26B3/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2231457A
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US2325652A
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US2397897A
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US2460566A
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US2485609A
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US2491687A
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US2592691A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-05 | 1957-10-05 | 1958-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-05 | 1961-10-05 | 1962-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-05 | 1965-10-05 | 1966-04-06 | $7700.00 | Window Closed / Lapsed |