Patent US2802209A successfully refreshed from Google Patents.
US2802209A
Expired / Lapsed
US
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Antennas employing laminated conductors
Assignee: AT&T Inc
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Filing: 1952-05-29
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Granted: 1957-08-06
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Expires: 1972-05-29
Abstract
No abstract record available.
Inventors
- 👤 Carl E Scheideler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:48
CPC Classifications
H; H01; H01Q; H01Q9/00; H01Q9/04; H01Q9/16; H01Q9/28; H01Q1/00; H01Q1/36; H01Q1/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2175252A
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US2237792A
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US2297512A
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US2511610A
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US2433181A
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US2548821A
Cited
US2529213A
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US2624002A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-05 | 1961-02-04 | 1961-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-05 | 1965-02-04 | 1965-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-05 | 1969-02-04 | 1969-08-06 | $7700.00 | Window Closed / Lapsed |