Patent US2930008A successfully refreshed from Google Patents.
US2930008A
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Waveguide arrangements including windows for passing electromagnetic waves
Assignee: The General Electric Company PLC
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Filing: 1956-07-05
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Granted: 1960-03-22
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Expires: 1976-07-05
Abstract
No abstract record available.
Inventors
- 👤 Walsh Arthur Stephen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:39
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2473724A
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US2473834A
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US2501335A
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US2636926A
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US2831047A
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US2788498A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-22 | 1963-09-21 | 1964-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-22 | 1967-09-21 | 1968-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-22 | 1971-09-21 | 1972-03-22 | $7700.00 | Window Closed / Lapsed |