Patent EP0640326A1 successfully refreshed from Google Patents.
US2444206A
Expired / Lapsed
US
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Transmission line for radio frequencies
Assignee: United States, WAR, Secretary of
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Filing: 1945-09-14
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Granted: 1948-06-29
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Expires: 1965-09-14
Abstract
No abstract record available.
Inventors
- 👤 Marshall C Pease
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:50
CPC Classifications
H; H01; H01B; H01B11/00; H01B11/18; H01B11/1873
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-29 | 1951-12-29 | 1952-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-29 | 1955-12-29 | 1956-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-29 | 1959-12-29 | 1960-06-29 | $7700.00 | Window Closed / Lapsed |