US2449451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-frequency dielectric heating apparatus
Assignee: Westinghouse Electric Corp
•
Filing: 1944-09-28
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Granted: 1948-09-14
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Expires: 1964-09-28
Abstract
No abstract record available.
Inventors
- 👤 Cassen Benedict
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:19
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/46; H05B6/62
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1972050A
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US2147689A
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US2179261A
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US2244756A
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US2241976A
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US2304958A
Cited
US2303444A
Cited
US2308043A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-14 | 1952-03-15 | 1952-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-14 | 1956-03-15 | 1956-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-14 | 1960-03-15 | 1960-09-14 | $7700.00 | Window Closed / Lapsed |