Patent US2738060A successfully refreshed from Google Patents.
US3435456A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable whip antenna for portable receiver
Assignee: KEL Corp
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Filing: 1966-02-01
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Granted: 1969-03-25
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Expires: 1986-02-01
Abstract
No abstract record available.
Inventors
- 👤 Winfred Edward Robb Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:26
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/08; H01Q1/10; H01Q1/084; H01Q1/12; H01Q1/22; H01Q1/24; H01Q1/241; H01Q1/242
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) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |