US2709220A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extensible and retractible antenna
Assignee: NAT ELECTRONIC Manufacturing CORP
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Filing: 1954-01-25
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Granted: 1955-05-24
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Expires: 1974-01-25
Abstract
No abstract record available.
Inventors
- 👤 Samuel J Spector
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:17
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/08; H01Q1/10; H01Q1/103; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19647; Y10T74/19651; Y10T74/19679; Y10T74/19684; Y10T74/20; Y10T74/20396; Y10T74/20402; Y10T74/20474; Y10T74/20516
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) | 1958-05-23 | 1958-11-22 | 1959-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-23 | 1962-11-22 | 1963-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-23 | 1966-11-22 | 1967-05-24 | $7700.00 | Window Closed / Lapsed |