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US2580889A
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Extensible antenna construction
Assignee: H Y BASSETT
•
Filing: 1949-01-26
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Granted: 1952-01-01
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Expires: 1969-01-26
Abstract
No abstract record available.
Inventors
- 👤 Carlson Emil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:43
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/08; H01Q1/10; H01Q1/103; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18832; Y10T74/19; Y10T74/19642; Y10T74/19698; Y10T74/19702; Y10T74/19716; Y10T74/20; Y10T74/20396; Y10T74/20474; Y10T74/20516
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2346728A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-31 | 1955-07-02 | 1956-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-31 | 1959-07-02 | 1960-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-31 | 1963-07-02 | 1964-01-01 | $7700.00 | Window Closed / Lapsed |