US3302208A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dipole antenna including ferrite sleeves about the medial portions of its radiating elements
Assignee: Individual
•
Filing: 1964-03-20
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Granted: 1967-01-31
•
Expires: 1984-03-20
Abstract
No abstract record available.
Inventors
- 👤 Hendrickson Alice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:57
CPC Classifications
H; H01; H01Q; H01Q9/00; H01Q9/04; H01Q9/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A ONE-HALF WAVE DIPOLE ANTENNA ASSEMBLY COMPRISING TWO OPPOSITE BUT IDENTICAL ARMS ARRANGED GENERALLY END-TO-END, EACH OF SAID ARMS COMPRISING A STRAIGHT ELONGATED ELECTRICALLY CONDUCTIVE ANTENNA ELEMENT ADAPTED WHEN EXCITED TO HAVE A HIGH CHARGE CONCENTRATION AT ITS OUTER END PORTION AND A HIGH CURRENT CONCENTRATION AT ITS INNER END PORTION, AND EACH OF SAID ARMS FURTHER INCLUDING A QUANTITY OF FERRITE MATERIAL IN THE FORM OF AT LEAST ONE TUBULAR SLEEVE HAVING A MAGNETIC PERMEABILITY GREATER THAN ITS DIELECTRIC CONSTANT OVER THE RANGE OF FREQUENCIES WITH WHICH THE ANTENNA ASSEMBLY IS USED LOCATED ON AND SURROUNDING SAID ANTENNA ELEMENT THEREOF ADJACENT ITS INNER END.
Claim 2
Dependent Claim
105 words
A ONE-HALF WAVE DIPOLE ANTENNA ASSEMBLY COMPRISING TWO OPPOSITE BUT IDENTICAL ARMS ARRANGED GENERALLY END-TO-END, EACH OF SAID ARMS COMPRISING A STRAIGHT ELONGATED ELECTRICALLY CONDUCTIVE ANTENNA ELEMENT ADAPTED WHEN EXCITED TO HAVE A HIGH CHARGE CONCENTRATION AT ITS OUTER END PORTION AND A HIGH CURRENT CONCENTRATION AT ITS INNER END PORTION, AND EACH OF SAID ARMS FURTHER INCLUDING A QUANTITY OF FERRITE MATERIAL IN THE FORM OF AT LEAST ONE TUBULAR SLEEVE HAVING A MAGNETIC PERMEABILITY GREATER THAN ITS DIELECTRIC CONSTANT OVER THE RANGE OF FREQUENCIES WITH WHICH THE ANTENNA ASSEMBLY IS USED LOCATED ON AND SURROUNDING SAID ANTENNA ELEMENT THEREOF ADJACENT ITS INNER END.
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) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |