US2504109A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dielectric heating with cavity resonator
Assignee: Westinghouse Electric Corp
•
Filing: 1946-10-04
•
Granted: 1950-04-18
•
Expires: 1966-10-04
Abstract
No abstract record available.
Inventors
- 👤 Thomas W Dakin
- 👤 Carroll N Works
- 👤 Fitzhugh W Boggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:54
CPC Classifications
B; B29; B29C; B29C35/00; B29C35/02; B29C35/12; H; H05; H05B; H05B6/00; H05B6/64; H05B6/80; Y; Y10; Y10S; Y10S264/00; Y10S264/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1972050A
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US2341617A
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US2177272A
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US2370161A
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US2197124A
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US2179261A
Cited
US2251085A
Cited
US2370883A
Cited
US2410656A
Cited
GB580374A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-04-17 | 1953-10-17 | 1954-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-17 | 1957-10-17 | 1958-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-17 | 1961-10-17 | 1962-04-18 | $7700.00 | Window Closed / Lapsed |