US3426352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Capacitively tuned reflector antenna
Assignee: Collins Radio Co
•
Filing: 1966-08-26
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Granted: 1969-02-04
•
Expires: 1986-08-26
Abstract
No abstract record available.
Inventors
- 👤 Richard C Fenwick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:17
CPC Classifications
H; H01; H01Q; H01Q5/00; H01Q5/40; H01Q5/45
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A BROADBAND ANTENNA COMPRISING A GROUND PLANE, A PAIR OF FEEDLINES EXTENDING OUTWARDLY FROM THE GROUND PLANE, A SECOND PAIR OF FEEDLINES CONNECTED TO THE ENDS OF THE FIRST PAIR OF FEEDLINES AND EXTENDING SUBSTANTIALLY PARALLEL TO THE GROUND PLANE, A FIRST ANTENNA ELEMENT CONNECTED TO THE SECOND PAIR OF FEEDLINES AND COMPRISING FIRST RADIATING ELEMENTS, A FIRST PAIR OF VARIABLE CAPACITORS CONNECTED TO THE ENDS OF THE RADIATING ELEMENTS, A FIRST PAIR OF CAPACITOR PLATES CONNECTED TO THE FIRST PAIR OF VARIABLE CAPACITORS, A SECOND ANTENNA ELEMENT CONNECTED TO THE SECOND PAIR OF FEEDLINES AND COMPRISING SECOND RADIATING ELEMENTS, A SECOND PAIR OF VARIABLE CAPACITORS CONNECTED TO THE ENDS OF THE SECOND RADIATING ELEMENTS, AND A SECOND PAIR OF CAPACITOR PLATES CONNECTED TO THE SECOND PAIR OF VARIABLE CAPACITORS.
Claim 2
Dependent Claim
130 words
A BROADBAND ANTENNA COMPRISING A GROUND PLANE, A PAIR OF FEEDLINES EXTENDING OUTWARDLY FROM THE GROUND PLANE, A SECOND PAIR OF FEEDLINES CONNECTED TO THE ENDS OF THE FIRST PAIR OF FEEDLINES AND EXTENDING SUBSTANTIALLY PARALLEL TO THE GROUND PLANE, A FIRST ANTENNA ELEMENT CONNECTED TO THE SECOND PAIR OF FEEDLINES AND COMPRISING FIRST RADIATING ELEMENTS, A FIRST PAIR OF VARIABLE CAPACITORS CONNECTED TO THE ENDS OF THE RADIATING ELEMENTS, A FIRST PAIR OF CAPACITOR PLATES CONNECTED TO THE FIRST PAIR OF VARIABLE CAPACITORS, A SECOND ANTENNA ELEMENT CONNECTED TO THE SECOND PAIR OF FEEDLINES AND COMPRISING SECOND RADIATING ELEMENTS, A SECOND PAIR OF VARIABLE CAPACITORS CONNECTED TO THE ENDS OF THE SECOND RADIATING ELEMENTS, AND A SECOND PAIR OF CAPACITOR PLATES CONNECTED TO THE SECOND PAIR OF VARIABLE CAPACITORS.
References Cited (Backward Citations)
US3151328A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-04 | 1972-08-05 | 1973-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-04 | 1976-08-05 | 1977-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-04 | 1980-08-05 | 1981-02-04 | $7700.00 | Window Closed / Lapsed |