US3176299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circular-type antenna with symmet-rically movable arms providing capacitive and inductive variation for tuning
Assignee: Electronics Res Inc
•
Filing: 1962-06-06
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Granted: 1965-03-30
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Expires: 1982-06-06
Abstract
No abstract record available.
Inventors
- 👤 John B Caraway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:12
CPC Classifications
H; H01; H01Q; H01Q9/00; H01Q9/04; H01Q9/16; H01Q9/26; H01Q9/265
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1851178A
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US2059299A
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US2324462A
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US2447879A
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DE846571C
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DE867256C
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GB707573A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |