US3358286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Small cylindrical stub antenna with loading capacitance
Assignee: EGGUD ELECTRONICS Inc
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Filing: 1964-08-13
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Granted: 1967-12-12
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Expires: 1984-08-13
Abstract
No abstract record available.
Inventors
- 👤 Heins John Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:00
CPC Classifications
H; H01; H01Q; H01Q9/00; H01Q9/04; H01Q9/30; H01Q1/00; H01Q1/27; H01Q1/28; H01Q1/282; H01Q1/283; H01Q9/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
AN ANTENNA SYSTEM COMPRISING; A HOLLOW METAL OPENENDED TUBE HAVING A LENGTH FROM .003 TO .1 OF THE OPERATING WAVELENGTH; A CENTER CONDUCTOR WITHIN SAID TUBE ELECTRICALLY AND MECHANICALLY CONNECTED THERETO AT THE TOP; AND A LOADING CAPACITIVE REACTANCE COUPLED BETWEEN THE BOTTOM OF SAID CENTER CONDUCTOR AND GROUND.
Claim 2
Dependent Claim
49 words
AN ANTENNA SYSTEM COMPRISING; A HOLLOW METAL OPENENDED TUBE HAVING A LENGTH FROM .003 TO .1 OF THE OPERATING WAVELENGTH; A CENTER CONDUCTOR WITHIN SAID TUBE ELECTRICALLY AND MECHANICALLY CONNECTED THERETO AT THE TOP; AND A LOADING CAPACITIVE REACTANCE COUPLED BETWEEN THE BOTTOM OF SAID CENTER CONDUCTOR AND GROUND.
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) | 1970-12-11 | 1971-06-12 | 1971-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-11 | 1975-06-12 | 1975-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-11 | 1979-06-12 | 1979-12-12 | $7700.00 | Window Closed / Lapsed |