US2701343A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High q resonant cavity
Assignee: AT&T Inc
•
Filing: 1947-08-28
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Granted: 1955-02-01
•
Expires: 1967-08-28
Abstract
No abstract record available.
Inventors
- 👤 Russell W Lange
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:59
CPC Classifications
H; H01; H01P; H01P7/00; H01P7/06; H01P1/00; H01P1/16; H01P1/162
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2267289A
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US2261130A
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US2439388A
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US2414785A
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US2443109A
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US2466439A
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US2455158A
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US2587055A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-31 | 1958-08-02 | 1959-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-31 | 1962-08-02 | 1963-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-31 | 1966-08-02 | 1967-02-01 | $7700.00 | Window Closed / Lapsed |