US2485785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-frequency induction heating system
Assignee: Sunbeam Corp
•
Filing: 1944-06-07
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Granted: 1949-10-25
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Expires: 1964-06-07
Abstract
No abstract record available.
Inventors
- 👤 Herbert F Storm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:03
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/02; H05B6/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2351910A
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US2408350A
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US2368471A
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US2402312A
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US2390981A
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US2434599A
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US2402852A
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US2396898A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-24 | 1953-04-25 | 1953-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-24 | 1957-04-25 | 1957-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-24 | 1961-04-25 | 1961-10-25 | $7700.00 | Window Closed / Lapsed |