Patent US2640141A successfully refreshed from Google Patents.
US2640141A
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US
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Apparatus for dielectric heating
Assignee: Westinghouse Electric Corp
•
Filing: 1948-10-12
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Granted: 1953-05-26
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Expires: 1968-10-12
Abstract
No abstract record available.
Inventors
- 👤 Milton P Vore
- 👤 Robert E Kirby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:06
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/46; H05B6/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE526175C
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US2228136A
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US2304958A
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US2288269A
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US2401991A
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US2415025A
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US2428615A
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US2491687A
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US2542589A
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US2457659A
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US2543618A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-25 | 1956-11-24 | 1957-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-25 | 1960-11-24 | 1961-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-25 | 1964-11-24 | 1965-05-26 | $7700.00 | Window Closed / Lapsed |