US2770800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antennas
Assignee: TDK Micronas GmbH
•
Filing: 1951-06-02
•
Granted: 1956-11-13
•
Expires: 1971-06-02
Abstract
No abstract record available.
Inventors
- 👤 Frank J Lundburg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:15
CPC Classifications
H; H01; H01Q; H01Q21/00; H01Q21/24; H01Q21/26; G; G01; G01S; G01S1/00; G01S1/02; H01Q15/00; H01Q15/02; H01Q15/12; H01Q3/00; H01Q3/12; H01Q3/14; H01Q7/00; H01Q7/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2267613A
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US2471021A
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US2557951A
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US2600179A
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US2617033A
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US2532920A
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US2532919A
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US2622199A
Cited
US2640930A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-13 | 1960-05-14 | 1960-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-13 | 1964-05-14 | 1964-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-13 | 1968-05-14 | 1968-11-13 | $7700.00 | Window Closed / Lapsed |