US2623981A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dielectric heating structure with shielding means
Assignee: Westinghouse Electric Corp
•
Filing: 1948-09-25
•
Granted: 1952-12-30
•
Expires: 1968-09-25
Abstract
No abstract record available.
Inventors
- 👤 William H Anderson
- 👤 Shingler Dean Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 03:30
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/64; H05B6/6402; B; B29; B29B; B29B13/00; H05B6/76; Y; Y10; Y10S; Y10S425/00; Y10S425/013
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1737824A
Cited
GB383524A
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US2065651A
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US2130243A
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US2379047A
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US2442451A
Cited
US2528492A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-30 | 1956-06-30 | 1956-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-30 | 1960-06-30 | 1960-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-30 | 1964-06-30 | 1964-12-30 | $7700.00 | Window Closed / Lapsed |