US2567701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultra high frequency coupling device for wave guides
Assignee: General Electric Co
•
Filing: 1944-06-02
•
Granted: 1951-09-11
•
Expires: 1964-06-02
Abstract
No abstract record available.
Inventors
- 👤 Milan D Fiske
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:29
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2356414A
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US2413171A
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US2412446A
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US2403302A
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US2403303A
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US2415242A
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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) | 1954-09-10 | 1955-03-12 | 1955-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-10 | 1959-03-12 | 1959-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-10 | 1963-03-12 | 1963-09-11 | $7700.00 | Window Closed / Lapsed |