US3553707A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wide-beam horn feed for parabolic antennas
Assignee: Commscope Technologies LLC
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Filing: 1967-05-25
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Granted: 1971-01-05
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Expires: 1987-05-25
Abstract
Abstract CURRENT-FLOW IS SUPPRESSED ON THE OUTER SURFACE OF THE HORN EXCEPT IN A SMALL ENDMOST REGION. A REFLECTOR SURROUNDS THE HORN, SPACED REARWARDLY FROM THE MOUTH. A CHOKE USED FOR THE SUPPRESSION BLOCKS CURRENT-FLOW BETWEEN THE HORN AND THE REFLECTOR. A HIGH DEGREE OF UNIFORMITY OF THE RADIATION PATTERN OVER A WIDE FORWARD ANGLE IS ACHIEVED.
Inventors
- 👤 Richard F H Yang
- 👤 Laurence H Hansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:20
CPC Classifications
H; H01; H01Q; H01Q13/00; H01Q13/06; H01Q13/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |