US3384896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vertical monopole with spiral-shaped top loading
Assignee: Northrop Grumman Corp
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Filing: 1965-06-28
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Granted: 1968-05-21
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Expires: 1985-06-28
Abstract
No abstract record available.
Inventors
- 👤 Karl H Kriz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:03
CPC Classifications
H; H01; H01Q; H01Q9/00; H01Q9/04; H01Q9/30; H01Q9/32; H01Q9/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A RADIO ANTENNA COMPRISING A VERTICAL ANTENNA SECTION, A TOP-LOADING ANTENNA SECTION CONNECTED TO ONE END OF SAID VERTICAL ANTENNA SECTION, COMPRISING A SUBSTANTIALLY HORIZONTALLY ORIENTED GENERALLY SPIRALLY WOUND WIRE PORTION, MEANS FOR SUPPORTING SAID TOP-LOADING SECTION COMPRISING A FRAME MEMBER, A WEBBING FABRICATED OF ELECTRICALLY INSULATING MATERIAL STRUNG ON SAID FRAME MEMBER, MEANS FOR ATTACHING SAID TOP-LOADING ANTENNA SECTION TO SAID WEBBING PORTION, AND MEANS FOR SUPPORTING SAID FRAME MEMBER SUBSTANTIALLY HORIZONTALLY OVER THE GROUND, AND MEANS FOR COUPLING SAID ANTENNA TO A RADIO FREQUENCY DEVICE, WHEREBY SAID VERTICAL ANTENNA SECTION AND SAID TOPLOADING SECTIONS AS COMBINED RESONATE AT A PREDETERMINED OPERATING FREQUENCY WITH SUBSTANTIALLY ALL THE ELECTROMAGNETIC RADIATION OF SAID ANTENNA BEING RAIATED FROM SAID VERTICAL ANTENNA SECTION.
Claim 2
Dependent Claim
120 words
A RADIO ANTENNA COMPRISING A VERTICAL ANTENNA SECTION, A TOP-LOADING ANTENNA SECTION CONNECTED TO ONE END OF SAID VERTICAL ANTENNA SECTION, COMPRISING A SUBSTANTIALLY HORIZONTALLY ORIENTED GENERALLY SPIRALLY WOUND WIRE PORTION, MEANS FOR SUPPORTING SAID TOP-LOADING SECTION COMPRISING A FRAME MEMBER, A WEBBING FABRICATED OF ELECTRICALLY INSULATING MATERIAL STRUNG ON SAID FRAME MEMBER, MEANS FOR ATTACHING SAID TOP-LOADING ANTENNA SECTION TO SAID WEBBING PORTION, AND MEANS FOR SUPPORTING SAID FRAME MEMBER SUBSTANTIALLY HORIZONTALLY OVER THE GROUND, AND MEANS FOR COUPLING SAID ANTENNA TO A RADIO FREQUENCY DEVICE, WHEREBY SAID VERTICAL ANTENNA SECTION AND SAID TOPLOADING SECTIONS AS COMBINED RESONATE AT A PREDETERMINED OPERATING FREQUENCY WITH SUBSTANTIALLY ALL THE ELECTROMAGNETIC RADIATION OF SAID ANTENNA BEING RAIATED FROM SAID VERTICAL ANTENNA SECTION.
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) | 1971-05-21 | 1971-11-20 | 1972-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-21 | 1975-11-20 | 1976-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-21 | 1979-11-20 | 1980-05-21 | $7700.00 | Window Closed / Lapsed |