US2560903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wave guide dielectric heating apparatus
Assignee: Raytheon Co
•
Filing: 1949-08-27
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Granted: 1951-07-17
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Expires: 1969-08-27
Abstract
No abstract record available.
Inventors
- 👤 Hedwig G Stiefel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:19
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/64; H05B6/78; H05B6/788; H05B2206/00; H05B2206/04; H05B2206/046
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2226871A
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US2283935A
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US2433842A
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US2457524A
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US2457695A
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US2495429A
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US2495415A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-16 | 1955-01-15 | 1955-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-16 | 1959-01-15 | 1959-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-16 | 1963-01-15 | 1963-07-17 | $7700.00 | Window Closed / Lapsed |