US3271774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catenary supported log periodic antenna
Assignee: Granger Associates Inc
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Filing: 1962-10-17
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Granted: 1966-09-06
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Expires: 1982-10-17
Abstract
No abstract record available.
Inventors
- 👤 Justice Raymond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:55
CPC Classifications
H; H01; H01Q; H01Q11/00; H01Q11/02; H01Q11/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A LOG PERIODIC ANTENNA STRUCTURE COMPRISING, TWO LOGARITHMICALLY PERIODIC ARRAYS HAVING A COMMON APEXSUBSTANTIALLY AT GROUND LEVEL, EACH OF SAID ARRAYS COMPRISING AN ELECTRICALLY CONDUCTING FEED WIRE INCLINED UPWARDLY AND AWAY FROM SAID APEX, A SINGLE TOWER SUPPORTEDING THE OUTER ENDS OF SAID FEED WIRES, THE TWO FEED WIRES OF SAID ARRAYS LYING IN A COMMON VERTICAL, MUTUALLY SPACED, ELECTRICALLY CONDUCTING LINEAR RADIATING ELEMENTS EXTENDING ALTERNATELY TO ONE SIDE AND THEN TO THE OTHER SIDE FROM EACH OF SAID FEED WIRES, SAID LINEAR RADIATING ELEMENTS OF EACH OF SAID ARRAYS INCREASING PROGRESSIVELY IN LENGTH FROM THE APEX OF THE ARRAY GOING TOWARDS THE SUPPORTING TOWER SUBSTANTIALLY IN ACCORDANCE WITH THE RELATIONSHIP
Claim 2
Dependent Claim
111 words
A LOG PERIODIC ANTENNA STRUCTURE COMPRISING, TWO LOGARITHMICALLY PERIODIC ARRAYS HAVING A COMMON APEXSUBSTANTIALLY AT GROUND LEVEL, EACH OF SAID ARRAYS COMPRISING AN ELECTRICALLY CONDUCTING FEED WIRE INCLINED UPWARDLY AND AWAY FROM SAID APEX, A SINGLE TOWER SUPPORTEDING THE OUTER ENDS OF SAID FEED WIRES, THE TWO FEED WIRES OF SAID ARRAYS LYING IN A COMMON VERTICAL, MUTUALLY SPACED, ELECTRICALLY CONDUCTING LINEAR RADIATING ELEMENTS EXTENDING ALTERNATELY TO ONE SIDE AND THEN TO THE OTHER SIDE FROM EACH OF SAID FEED WIRES, SAID LINEAR RADIATING ELEMENTS OF EACH OF SAID ARRAYS INCREASING PROGRESSIVELY IN LENGTH FROM THE APEX OF THE ARRAY GOING TOWARDS THE SUPPORTING TOWER SUBSTANTIALLY IN ACCORDANCE WITH THE RELATIONSHIP
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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |