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Patent US2944133A successfully refreshed from Google Patents.
US2944133A
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Radio frequency dielectric heating apparatus
Assignee: Radio Heaters Ltd
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Filing: 1958-12-01
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Granted: 1960-07-05
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Expires: 1978-12-01
Abstract
No abstract record available.
Inventors
- 👤 Christopher E M Tibbs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:26
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/46; H05B6/48; A; A61; A61N; A61N1/00; A61N1/40; A61N1/403
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-05 | 1964-01-04 | 1964-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-05 | 1968-01-04 | 1968-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-05 | 1972-01-04 | 1972-07-05 | $7700.00 | Window Closed / Lapsed |