Patent US2852650A successfully refreshed from Google Patents.
US2852650A
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US
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Induction heating apparatus and method
Assignee: Surface Combustion Corp
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Filing: 1956-07-09
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Granted: 1958-09-16
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Expires: 1976-07-09
Abstract
No abstract record available.
Inventors
- 👤 Coriolis Ernest G De
- 👤 William M Hepburn
- 👤 John J Turin
- 👤 Allan J Conkle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:51
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/02; H05B6/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1646498A
Cited
US2293047A
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US2396613A
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US2402852A
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US2490107A
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US2572073A
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US2676234A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-15 | 1962-03-17 | 1962-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-15 | 1966-03-17 | 1966-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-15 | 1970-03-17 | 1970-09-16 | $7700.00 | Window Closed / Lapsed |