US3273159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Log periodic antenna comprised of parallel fed quad elements
Assignee: Collins Radio Co
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Filing: 1964-06-23
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Granted: 1966-09-13
•
Expires: 1984-06-23
Abstract
No abstract record available.
Inventors
- 👤 Holloway Jesse Carol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:36
CPC Classifications
H; H01; H01Q; H01Q11/00; H01Q11/02; H01Q11/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
LOGARITHMICALLY PERIODIC ANTENNA MEANS COMPRISING A PLURALITY OF AT LEAST FOUR QUAD ANTENNA ELEMENTS CONSTRUCTED TO FORM A FRUSTRUM WITH EACH QUAD LYING IN A PLANE SUBSTANTIALLY PERPENDICULAR TO THE AXIS OF SAID FRUSTRUM, THE RADIAL DISTANCE OF THE PLANE OF ANY QUAD ANTENNA ELEMENT MEASURED FROM THE APEX OF THE FRUSTRUM, BEARING A CONSTANT RATIO T TO THE RADIAL DISTANCE OF THE PLANE OF THE QUAD ANTENNA NEXT FARTHEST REMOVED FROM SAID APEX,
Claim 2
Dependent Claim
74 words
LOGARITHMICALLY PERIODIC ANTENNA MEANS COMPRISING A PLURALITY OF AT LEAST FOUR QUAD ANTENNA ELEMENTS CONSTRUCTED TO FORM A FRUSTRUM WITH EACH QUAD LYING IN A PLANE SUBSTANTIALLY PERPENDICULAR TO THE AXIS OF SAID FRUSTRUM, THE RADIAL DISTANCE OF THE PLANE OF ANY QUAD ANTENNA ELEMENT MEASURED FROM THE APEX OF THE FRUSTRUM, BEARING A CONSTANT RATIO T TO THE RADIAL DISTANCE OF THE PLANE OF THE QUAD ANTENNA NEXT FARTHEST REMOVED FROM SAID APEX,
References Cited (Backward Citations)
US1347440A
Cited
US2246151A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |